I
nte
rna
t
io
na
l
J
o
urna
l o
f
E
lect
rica
l a
nd
Co
m
p
ute
r
E
ng
in
ee
ring
(
I
J
E
CE
)
Vo
l.
9
,
No
.
1
,
Feb
r
u
ar
y
201
9
,
p
p
.
7
1
3
~7
2
2
I
SS
N:
2
0
8
8
-
8708
,
DOI
: 1
0
.
1
1
5
9
1
/
i
j
ec
e
.
v9
i
1
.
pp
713
-
7
2
2
713
J
o
ur
na
l ho
m
ep
a
g
e
:
h
ttp
:
//ia
e
s
co
r
e
.
co
m/
jo
u
r
n
a
ls
/in
d
ex
.
p
h
p
/
I
JE
C
E
Ana
ly
z
ing
boo
tsr
a
p and
founda
tio
n f
o
nt
-
end
fra
m
e
w
o
rk
s
:
a
c
o
m
pa
ra
tive
s
tu
dy
M
a
j
ida
L
a
a
ziri
1
,
K
ha
o
ula
B
en
m
o
us
s
a
2
,
Sa
m
ira
K
ho
ulji
3
,
K
er
k
eb
M
o
ha
m
ed
L
a
rb
i
4
,
Abir
E
l Y
a
m
a
m
i
5
1,
2,
3
I
n
f
o
rm
a
ti
o
n
S
y
ste
m
En
g
in
e
e
rin
g
Re
sa
rc
h
G
ro
u
p
,
Na
ti
o
n
a
l
S
c
h
o
o
l
o
f
A
p
p
li
e
d
S
c
ien
c
e
s,
A
b
d
e
l
m
a
l
e
k
Essa
a
d
i
Un
iv
e
rsit
y
,
M
o
ro
c
c
o
4
In
f
o
rm
a
ti
o
n
S
y
ste
m
En
g
in
e
e
rin
g
Re
sa
rc
h
G
ro
u
p
,
F
a
c
u
lt
y
o
f
S
c
ien
c
e
s,
A
b
d
e
l
m
a
le
k
Essa
a
d
i
Un
iv
e
rs
it
y
,
M
o
ro
c
c
o
5
L
a
b
o
ra
to
ry
S
ig
n
a
ls,
Distrib
u
ted
S
y
st
e
m
s a
n
d
A
rti
f
icia
l
In
telli
g
e
n
c
e
,
ENS
ET
M
o
h
a
m
m
e
d
ia,
Ha
ss
a
n
II
Un
iv
e
rsit
y
,
M
o
ro
c
c
o
Art
icle
I
nfo
AB
ST
RAC
T
A
r
ticle
his
to
r
y:
R
ec
eiv
ed
Feb
1
8
,
2
0
1
8
R
ev
i
s
ed
No
v
2
0
,
2
0
1
8
A
cc
ep
ted
Dec
1
5
,
2
0
1
8
M
o
st
m
o
d
e
rn
w
e
b
a
p
p
li
c
a
ti
o
n
s
u
se
so
m
e
k
in
d
o
f
f
ro
n
t
-
e
n
d
f
ra
m
e
w
o
rk
s
f
o
r
d
e
sig
n
in
g
a
n
d
c
re
a
ti
n
g
c
o
n
ten
t
i
n
a
f
a
ste
r
a
n
d
m
o
re
e
ff
icie
n
t
wa
y
,
w
h
ich
sa
v
e
s
v
a
lu
a
b
le
ti
m
e
w
h
e
n
c
re
a
ti
n
g
re
sp
o
n
siv
e
w
e
b
sites
.
T
h
e
re
a
re
m
a
n
y
f
ro
n
t
-
e
n
d
f
ra
m
e
w
o
r
k
s
th
a
t
v
a
r
y
e
n
o
rm
o
u
sly
in
term
s
o
f
fe
a
tu
re
s
a
n
d
b
e
n
e
f
it
s,
w
h
ich
c
o
u
ld
m
a
k
e
th
e
c
h
o
ice
o
f
f
ro
n
t
-
e
n
d
f
ra
m
e
w
o
rk
f
o
r
th
e
d
e
v
e
lo
p
e
r
tri
c
k
y
.
In
th
is
c
o
n
tex
t,
th
is
p
a
p
e
r
f
o
c
u
se
s
o
n
a
n
e
ff
e
c
ti
v
e
a
n
a
l
y
sis
o
f
t
w
o
o
f
to
d
a
y
'
s
m
o
st
p
o
p
u
lar
f
ro
n
t
-
e
n
d
f
ra
m
e
w
o
rk
s,
Bo
o
stra
p
a
n
d
F
o
u
n
d
a
ti
o
n
.
T
h
e
re
su
lt
s
sh
o
w
th
a
t
o
u
r
a
n
a
ly
sis
c
a
n
b
e
b
e
n
e
f
icia
l
f
o
r
d
e
v
e
lo
p
e
rs
to
se
lec
t
th
e
a
p
p
ro
p
riate
f
ro
n
t
e
n
d
f
ra
m
e
w
o
rk
to
c
u
sto
m
ize
th
e
ir
w
e
b
a
p
p
li
c
a
ti
o
n
s.
K
ey
w
o
r
d
s
:
B
o
o
ts
tr
ap
Fo
u
n
d
atio
n
Fro
n
t
-
e
n
d
f
r
a
m
e
w
o
r
k
s
Co
p
y
rig
h
t
©
2
0
1
9
In
stit
u
te o
f
A
d
v
a
n
c
e
d
E
n
g
i
n
e
e
rin
g
a
n
d
S
c
ien
c
e
.
Al
l
rig
h
ts re
se
rv
e
d
.
C
o
r
r
e
s
p
o
nd
ing
A
uth
o
r
:
L
aa
zir
i
Ma
j
id
a,
I
n
f
o
r
m
a
tio
n
S
y
s
te
m
E
n
g
in
ee
r
i
n
g
R
esar
c
h
Gr
o
u
p
,
Natio
n
al
Sc
h
o
o
l o
f
A
p
p
lied
Scien
ce
s
,
A
b
d
el
m
a
lek
E
s
s
aâ
d
i U
n
iv
er
s
it
y
,
Mh
an
n
ec
h
I
I
,
B
.
P 2
1
2
1
T
eto
u
an
,
Mo
r
o
cc
o
.
E
m
ail:
m
aj
id
a.
laaz
ir
i@
g
m
ail.
c
o
m
1.
I
NT
RO
D
UCT
I
O
N
No
w
ad
a
y
s
,
w
eb
d
ev
elo
p
m
e
n
t
is
m
u
c
h
s
i
m
p
li
f
ied
b
ec
au
s
e
o
f
th
e
e
m
er
g
en
ce
o
f
d
if
f
er
e
n
t
f
r
o
n
t
-
e
n
d
f
r
a
m
e
w
o
r
k
s
.
I
n
r
ec
en
t
y
ea
r
s
,
d
o
ze
n
s
o
f
f
r
o
n
ten
d
f
r
a
m
e
wo
r
k
s
h
a
v
e
b
ec
o
m
e
a
v
ailab
le
to
w
eb
d
ev
elo
p
er
s
.
Fro
n
t
-
e
n
d
C
SS
d
ev
elo
p
m
e
n
t
f
r
a
m
e
w
o
r
k
s
m
a
k
e
th
e
w
eb
d
ev
elo
p
m
e
n
t
p
r
o
ce
s
s
f
as
ter
,
s
i
m
p
ler
an
d
m
o
r
e
s
tan
d
ar
d
s
-
co
m
p
lia
n
t.
A
n
d
h
el
p
b
u
ild
a
w
ell
-
s
tr
u
ct
u
r
ed
,
m
ai
n
tai
n
ab
le
an
d
u
p
-
g
r
ad
ab
le
w
e
b
s
ite.
T
h
u
s
t
h
e
y
a
ls
o
h
elp
th
e
d
ev
e
lo
p
er
to
s
av
e
a
lo
t
o
f
ti
m
e
b
ec
au
s
e
t
h
er
e
is
a
m
u
ltit
u
d
e
o
f
alr
ea
d
y
p
r
eb
u
ilt
ele
m
en
ts
r
ea
d
y
to
u
s
e.
E
ac
h
f
r
a
m
e
w
o
r
k
h
as
it
s
o
w
n
s
tr
en
g
t
h
s
a
n
d
w
ea
k
n
e
s
s
e
s
,
an
d
s
p
ec
if
ic
ap
p
licatio
n
ar
ea
s
,
allo
w
i
n
g
th
e
d
ev
elo
p
er
to
ch
o
o
s
e
o
n
e
ac
co
r
d
in
g
to
th
e
n
ee
d
s
o
f
h
is
s
p
ec
i
f
ic
p
r
o
j
ec
t
[
1
]
.
I
n
ad
d
itio
n
,
m
o
s
t
o
f
t
h
e
o
p
tio
n
s
ar
e
m
o
d
u
lar
,
allo
w
i
n
g
to
u
s
e
o
n
l
y
t
h
e
co
m
p
o
n
en
ts
t
h
at
t
h
e
d
ev
elo
p
er
n
ee
d
s
,
o
r
ev
en
m
ix
co
m
p
o
n
en
t
s
f
r
o
m
d
if
f
er
en
t
f
r
a
m
e
w
o
r
k
s
.
T
h
er
e
ar
e
s
o
m
a
n
y
f
r
a
m
e
w
o
r
k
ch
o
ice
s
b
u
t
m
an
y
d
e
v
elo
p
er
s
ar
e
attr
ac
ted
t
o
th
e
m
o
s
t
p
o
p
u
lar
o
n
es li
k
e
B
o
o
ts
tr
ap
an
d
Fo
u
n
d
atio
n
.
T
h
e
au
th
o
r
s
[
2
]
s
ta
te
i
n
t
h
eir
s
tu
d
y
o
f
R
e
s
p
o
n
s
i
v
e
W
eb
Desig
n
Fra
m
e
w
o
r
k
s
t
h
at
f
r
o
n
t
-
e
n
d
f
r
a
m
e
w
o
r
k
s
r
ed
u
ce
t
h
e
w
o
r
k
lo
ad
o
f
d
ev
elo
p
er
s
a
n
d
s
h
o
r
ten
a
f
r
o
n
t
-
e
n
d
d
ev
elo
p
m
en
t
p
r
o
ce
s
s
.
T
h
ese
f
r
a
m
e
w
o
r
k
s
h
elp
d
ev
elo
p
er
s
to
q
u
ick
l
y
cr
ea
te
a
w
eb
s
i
te.
So
th
e
y
in
s
is
t
t
h
at
th
e
B
o
o
ts
tr
ap
f
r
a
m
e
w
o
r
k
an
d
Fo
u
n
d
atio
n
h
av
e
b
ec
o
m
e
t
h
e
m
o
s
t
r
e
m
ar
k
ab
le
f
r
a
m
e
w
o
r
k
s
b
y
d
ev
elo
p
er
s
a
n
d
m
o
s
t
u
s
ed
.
T
h
e
au
t
h
o
r
[
3
]
in
h
is
ar
ticle
o
n
R
esp
o
n
s
i
v
e
W
eb
Desig
n
w
it
h
th
e
B
o
o
ts
tr
ap
Fra
m
e
w
o
r
k
p
r
ef
er
s
to
w
o
r
k
w
ith
t
h
e
b
o
o
ts
r
ap
f
r
a
m
e
w
o
r
k
b
ec
au
s
e
it i
s
a
s
t
y
li
s
h
,
i
n
t
u
iti
v
e
a
n
d
p
o
w
er
f
u
l
f
r
o
n
t e
n
d
.
B
o
o
ts
tr
ap
h
as a
s
tan
d
ar
d
s
et
o
f
cla
s
s
es
th
a
t
allo
w
d
e
v
elo
p
er
s
to
q
u
ick
l
y
b
u
ild
ap
p
licatio
n
s
.
B
o
o
ts
tr
ap
is
th
e
m
o
s
t
p
o
p
u
lar
h
t
m
l,
css
a
n
d
j
av
ascr
ip
t
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
1
,
Feb
r
u
ar
y
2
0
1
9
:
7
1
3
-
722
714
f
r
a
m
e
w
o
r
k
th
at
o
f
f
er
s
f
le
x
ib
il
it
y
in
t
h
e
u
s
e
o
f
to
o
ls
w
ith
o
u
t
m
u
c
h
k
n
o
w
led
g
e
o
f
lan
g
u
a
g
es.
T
h
er
ef
o
r
e,
s
av
e
ti
m
e
f
r
o
m
co
d
in
g
h
ea
v
y
co
d
e.
T
h
e
au
th
o
r
[
4
]
c
o
n
f
ir
m
s
t
h
at
B
o
o
ts
tr
ap
u
s
es
L
E
S
S
C
S
S,
is
co
m
p
iled
v
ia
No
d
e,
an
d
is
m
an
a
g
ed
v
ia
Gi
tHu
b
t
o
h
elp
d
ev
elo
p
er
s
m
a
k
e
a
w
e
s
o
m
e
t
h
i
n
g
s
o
n
t
h
e
w
eb
.
A
n
d
Fo
u
n
d
atio
n
i
s
a
n
ad
v
an
ce
d
an
d
r
esp
o
n
s
iv
e
f
r
o
n
t
-
en
d
f
r
a
m
e
w
o
r
k
.
Fo
u
n
d
atio
n
3
is
b
u
ilt
w
it
h
Sas
s
,
a
p
o
w
er
f
u
l
C
SS
p
r
ep
r
o
ce
s
s
o
r
,
w
h
ic
h
allo
w
s
y
o
u
to
d
ev
elo
p
f
aster
.
Stu
d
ies
h
a
v
e
m
o
u
n
ted
t
h
at
it
h
as a
d
eb
ate
o
n
t
h
e
c
h
o
ice
o
f
f
r
o
n
t e
n
d
f
r
a
m
e
w
o
r
k
,
i
n
o
r
d
er
to
m
ak
e
th
e
s
elec
tio
n
p
r
o
ce
s
s
ea
s
ier
,
t
h
i
s
ar
ticle
f
o
c
u
s
es
o
n
a
n
e
f
f
ec
ti
v
e
an
al
y
s
i
s
b
et
w
ee
n
t
h
e
B
o
o
ts
t
r
ap
an
d
Fo
u
n
d
atio
n
f
r
a
m
e
w
o
r
k
s
w
h
ic
h
ar
e
th
e
m
o
s
t u
s
ed
an
d
p
o
p
u
lar
.
T
h
e
r
em
i
n
d
er
o
f
th
i
s
p
ap
er
is
p
r
esen
ted
as f
o
llo
w
:
s
ec
tio
n
2
p
r
esen
ts
a
li
ter
atu
r
e
r
e
v
ie
w
ab
o
u
t
t
h
e
s
u
b
j
ec
t,
th
e
n
w
e
p
r
ese
n
t
tr
o
u
g
h
s
ec
tio
n
3
o
u
r
p
r
o
p
o
s
ed
m
o
d
el
d
ed
icate
d
to
th
e
ev
al
u
atio
n
o
f
w
eb
d
ev
el
o
p
m
e
n
t
f
r
a
m
e
w
o
r
k
s
.
Sectio
n
4
p
r
esen
ts
a
d
is
cu
s
s
io
n
o
f
t
h
e
o
b
tain
ed
r
esu
lts
,
to
s
u
m
u
p
w
it
h
a
co
n
cl
u
s
io
n
in
s
ec
tio
n
5
.
2.
L
E
T
AR
A
TU
R
E
RE
VI
E
W
2
.
1
.
F
r
o
nt
-
end f
ra
m
ew
o
r
k
T
h
e
f
r
a
m
e
w
o
r
k
ar
e
co
m
m
o
n
t
o
o
ls
in
th
e
p
r
o
ce
s
s
o
f
cr
ea
tio
n
o
f
w
eb
s
ites
.
T
h
er
e
ex
i
s
t
es
s
e
n
tiall
y
t
w
o
t
y
p
es
o
f
f
r
a
m
e
w
o
r
k
s
:
f
r
o
n
t
-
e
n
d
an
d
b
ac
k
-
e
n
d
as
s
h
o
w
n
i
n
Fig
u
r
e
1
,
(
th
i
s
d
is
tin
c
tio
n
is
e
s
tab
lis
h
ed
ac
co
r
d
in
g
to
w
h
e
th
er
th
e
f
r
a
m
e
w
o
r
k
is
f
o
r
th
e
p
r
esen
ta
tio
n
la
y
er
o
r
th
e
ap
p
licatio
n
/
lo
g
ical
la
y
er
)
.
T
h
e
b
ac
k
-
e
n
d
o
f
a
n
ap
p
licatio
n
(
a
s
et
o
f
f
ile
s
w
it
h
lib
r
ar
ies
to
ac
ce
s
s
d
atab
ases
,
m
o
d
el
s
tr
u
ctu
r
e
s
,
s
e
s
s
io
n
m
an
ag
e
m
e
n
t)
.
T
h
er
e
i
s
m
an
y
B
ac
k
-
e
n
d
f
r
a
m
e
w
o
r
k
s
(
i
.
e.
Z
en
d
Fra
m
e
w
o
r
k
,
S
y
m
f
o
n
y
,
L
ar
av
el,
C
a
k
eP
H
P
.
.
.
)
[
5
]
,
[
6
]
.
A
f
r
o
n
t
-
e
n
d
f
r
a
m
e
w
o
r
k
i
s
a
lib
r
ar
y
to
en
s
u
r
e
s
tr
u
ct
u
r
e
a
n
d
g
r
ap
h
ical
co
n
s
i
s
ten
c
y
v
er
y
q
u
ick
l
y
.
Stru
ct
u
r
e
in
co
l
u
m
n
s
,
t
y
p
o
g
r
ap
h
y
(
f
o
n
t,
s
ize,
titl
e,
p
ar
ag
r
ap
h
)
,
co
m
p
o
n
en
ts
(
b
u
tto
n
,
f
o
r
m
,
d
r
o
p
d
o
w
n
,
ca
r
o
u
s
el,
tab
,
to
o
ltip
,
aler
t,
m
o
d
al)
,
s
tates,
r
esp
o
n
s
iv
e
;
t
h
e
y
a
ll b
r
in
g
a
n
u
m
b
er
o
f
to
o
ls
to
s
av
e
a
lo
t o
f
ti
m
e
i
n
th
e
cr
ea
tio
n
o
f
w
eb
s
ite
[
7
]
.
Fro
n
t
-
e
n
d
f
r
a
m
e
w
o
r
k
s
t
y
p
ical
l
y
co
n
s
is
t o
f
a
p
ac
k
a
g
e
co
n
s
is
tin
g
o
f
a
s
tan
d
ar
d
co
d
e
f
ile
a
n
d
f
o
ld
er
s
tr
u
ct
u
r
e
(
HT
M
L
,
C
SS
,
J
S d
o
cu
m
e
n
ts
,
etc.
)
.
T
h
e
HT
ML
lan
g
u
a
g
e
s
tr
u
ct
u
r
es
t
h
e
d
ata,
t
h
e
C
SS
s
t
y
l
izes
t
h
is
d
ata
to
m
a
k
e
t
h
e
m
v
is
u
all
y
co
m
p
r
e
h
en
s
ib
le
an
d
ae
s
th
e
tic
,
th
e
J
S
(
J
av
ascr
ip
t
ac
r
o
n
y
m
)
allo
w
s
to
p
r
o
d
u
ce
an
i
m
atio
n
s
an
d
in
ter
ac
tio
n
s
i
m
p
r
o
v
i
n
g
t
h
e
u
s
er
ex
p
er
ien
ce
.
T
h
e
u
s
u
al
co
m
p
o
n
e
n
t
s
ar
e
[
4
]
,
[
8
]
:
a.
C
SS
s
o
u
r
ce
co
d
e
to
cr
ea
te
a
g
r
id
: th
i
s
a
llo
w
s
th
e
d
ev
elo
p
er
t
o
p
o
s
itio
n
t
h
e
d
if
f
er
en
t
ele
m
e
n
ts
t
h
at
m
a
k
e
u
p
th
e
d
esi
g
n
o
f
t
h
e
s
ite
in
a
s
i
m
p
le
an
d
v
er
s
atile
w
a
y
.
b.
T
y
p
o
g
r
ap
h
y
s
t
y
le
d
ef
i
n
itio
n
s
f
o
r
H
T
ML
ele
m
e
n
ts
.
c.
So
lu
tio
n
s
f
o
r
b
r
o
w
s
er
i
n
co
m
p
atib
ilit
y
ca
s
es so
t
h
at
th
e
s
ite
d
is
p
la
y
s
co
r
r
ec
tly
i
n
all
b
r
o
w
s
e
r
s
.
d.
C
r
ea
te
s
ta
n
d
ar
d
C
SS
clas
s
es t
h
at
ca
n
b
e
u
s
ed
to
s
t
y
lize
ad
v
a
n
ce
d
co
m
p
o
n
en
t
s
o
f
t
h
e
u
s
er
in
ter
f
ac
e.
Fig
u
r
e
1
.
B
ac
k
-
en
d
a
n
d
f
r
o
n
t
-
en
d
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2
0
8
8
-
8708
A
n
a
lyzi
n
g
b
o
o
ts
r
a
p
a
n
d
fo
u
n
d
a
tio
n
fo
n
t
-
e
n
d
fr
a
mewo
r
ks:
a
co
mp
a
r
a
tive
s
tu
d
y
(
Ma
jid
a
La
a
z
ir
i
)
715
A
f
r
o
n
t
-
e
n
d
f
r
a
m
e
w
o
r
k
o
f
f
er
s
p
r
ef
o
r
m
atted
a
n
d
co
n
f
i
g
u
r
ab
l
e
ele
m
e
n
t
s
f
o
r
th
e
co
m
p
o
n
e
n
t
s
o
f
a
w
eb
p
ag
e:
a.
A
co
m
p
lete
a
n
d
m
a
n
ip
u
lab
le
la
y
o
u
t
b.
Mo
d
u
les co
v
er
in
g
all
asp
ec
t
s
an
d
cu
r
r
en
t
n
ee
d
s
c.
Stan
d
ar
d
s
tates
d.
Mu
ltip
le
i
n
ter
ac
ti
v
e
b
eh
av
io
r
s
e.
A
c
u
s
to
m
izab
le
r
esp
o
n
s
i
v
e
d
esig
n
W
e
p
r
esen
t b
lo
w
t
h
e
ad
v
a
n
ta
g
es o
f
u
s
in
g
a
f
r
o
n
t
-
en
d
f
r
a
m
e
w
o
r
k
d
er
iv
ed
f
r
o
m
[
5
]
,
[
9
]
s
tu
d
ies
:
1.
T
im
e
s
a
v
i
n
g
I
n
th
e
ca
s
e
o
f
r
ea
lizatio
n
o
f
a
n
e
w
p
r
o
j
ec
t,
th
e
f
r
o
n
t
-
en
d
d
ev
elo
p
er
m
u
s
t
ev
al
u
ate
t
h
e
d
ev
elo
p
m
e
n
t
ti
m
e
b
u
t
o
f
ten
th
e
ti
m
e
p
r
ess
es.
So
t
h
an
k
s
to
t
h
e
f
r
o
n
t
-
en
d
f
r
a
m
e
w
o
r
k
t
h
e
d
ev
elo
p
er
will
n
o
t
h
a
v
e
to
s
tar
t
f
r
o
m
s
cr
atch
.
R
at
h
er
th
a
n
e
n
co
d
e
an
d
cr
ea
te
all
t
h
e
co
m
p
o
n
en
ts
o
f
th
e
p
ag
e,
i
t
w
i
ll
h
a
v
e
th
e
tas
k
o
f
ass
e
m
b
l
in
g
t
h
e
p
r
ef
o
r
m
atted
ele
m
e
n
ts
a
n
d
p
r
o
p
o
s
ed
b
y
th
e
f
r
a
m
e
w
o
r
k
.
I
t
'
s
li
k
e
eli
m
in
atin
g
a
s
tep
in
th
e
f
r
o
n
t
-
en
d
d
ev
elo
p
er
w
o
r
k
f
lo
w.
2.
Stan
d
ar
d
izatio
n
a
n
d
p
er
f
o
r
m
a
n
ce
A
s
ite
d
ev
elo
p
ed
u
s
in
g
a
f
r
am
e
w
o
r
k
w
ill
b
e
e
f
f
icie
n
t
b
ec
au
s
e
th
e
f
r
a
m
e
w
o
r
k
is
o
p
ti
m
i
ze
d
f
o
r
th
e
m
u
ltip
le
w
eb
b
r
o
w
s
er
s
o
f
t
h
e
m
ar
k
et.
3.
Scalab
ilit
y
a
n
d
u
p
d
ate
T
h
e
f
r
a
m
e
w
o
r
k
i
s
r
eg
u
lar
l
y
u
p
d
ated
to
co
m
p
l
y
w
it
h
t
h
e
latest
w
eb
s
ta
n
d
ar
d
s
b
u
t
als
o
to
o
f
f
er
r
elev
an
t
m
o
d
u
les
a
n
d
u
p
-
to
-
d
ate.
Usi
n
g
a
f
r
a
m
e
w
o
r
k
,
w
e
b
en
ef
it
f
r
o
m
a
s
et
o
f
b
en
ef
icial
i
m
p
r
o
v
e
m
e
n
ts
f
o
r
th
e
co
n
s
tr
u
ctio
n
an
d
i
m
p
le
m
e
n
tatio
n
o
f
a
w
eb
s
ite
t
h
at
m
u
s
t
co
m
p
l
y
w
it
h
t
h
e
latest
s
tan
d
ar
d
s
.
4.
Fre
e
an
d
Op
en
Fro
n
t
-
e
n
d
f
r
a
m
e
w
o
r
k
s
ar
e
(
at
least
c
u
r
r
en
tl
y
)
f
r
ee
a
n
d
o
p
en
.
T
h
is
m
ea
n
s
th
a
t
th
e
y
ca
n
b
e
u
s
ed
w
it
h
o
u
t
p
a
y
i
n
g
a
lice
n
s
e
a
n
d
b
ein
g
ab
le
to
m
o
d
if
y
t
h
e
m
at
w
i
ll.
T
h
is
is
at
least
th
e
ca
s
e
f
o
r
B
o
o
ts
tr
ap
an
d
Fo
u
n
d
atio
n
.
5.
R
eliab
ilit
y
T
h
e
m
o
s
t
p
o
p
u
lar
f
r
a
m
e
w
o
r
k
s
b
y
h
u
n
d
r
ed
s
o
f
t
h
o
u
s
a
n
d
s
o
f
d
ev
elo
p
er
s
w
h
o
attest
to
th
e
q
u
alit
y
an
d
r
eliab
ilit
y
o
f
t
h
e
to
o
l.
T
h
e
b
u
g
s
ar
e
al
m
o
s
t
n
o
n
-
e
x
is
ten
t.
I
n
s
h
o
r
t,
u
s
i
n
g
a
f
r
a
m
e
w
o
r
k
eli
m
i
n
ates
a
s
o
m
eti
m
e
s
lab
o
r
io
u
s
s
tep
th
at
is
to
d
esi
g
n
th
e
v
i
s
u
a
l
b
ases
o
f
t
h
e
s
ite
a
n
d
cr
ea
te
d
if
f
er
en
t
m
o
d
u
les
o
f
ze
r
o
.
I
n
ad
d
itio
n
to
s
av
i
n
g
ti
m
e,
it p
r
o
v
id
es a
p
r
o
v
en
,
r
o
b
u
s
t,
an
d
s
ca
lab
le
s
tr
u
ct
u
r
e
test
ed
b
y
th
o
u
s
a
n
d
s
o
f
u
s
e
r
s
.
2
.
2
.
B
o
o
t
s
ra
p
B
o
o
ts
tr
ap
T
w
itter
i
s
o
n
e
o
f
th
e
b
est
k
n
o
w
n
a
n
d
m
o
s
t
u
s
ed
C
SS
f
r
a
m
e
w
o
r
k
s
as
s
h
o
w
n
in
Fig
u
r
e
2
.
I
t
w
a
s
d
ev
elo
p
ed
o
n
T
w
i
tter
in
2
0
1
0
.
T
h
is
f
r
a
m
e
w
o
r
k
r
u
n
s
o
n
a
g
r
id
s
y
s
te
m
o
f
1
2
co
lu
m
n
s
,
w
i
th
4
t
y
p
es
o
f
d
is
p
la
y
s
p
o
s
s
ib
le
d
ep
en
d
in
g
o
n
t
h
e
w
id
t
h
o
f
th
e
u
s
er
'
s
s
cr
ee
n
.
W
e
ca
n
ad
ap
t
t
h
e
ap
p
ea
r
an
ce
o
f
t
h
e
s
i
te
to
t
h
e
v
is
i
to
r
'
s
m
a
ter
ial.
T
h
e
B
o
o
ts
tr
ap
o
f
f
er
s
co
m
p
o
n
en
t
s
(
b
u
tto
n
s
,
n
av
ig
at
io
n
b
ar
s
,
f
o
r
m
,
.
.
.
)
p
r
ett
y
an
d
ea
s
y
to
in
te
g
r
ate.
Si
n
ce
v
er
s
io
n
3
,
it
i
s
to
tall
y
r
esp
o
n
s
iv
e.
T
h
e
ele
m
en
ts
ad
a
p
t
to
t
h
e
w
id
t
h
o
f
t
h
e
s
cr
ee
n
b
y
s
lid
i
n
g
o
n
e
b
elo
w
th
e
o
t
h
er
w
h
e
n
t
h
e
w
id
t
h
d
ec
r
ea
s
es.
T
h
e
ad
ap
t
atio
n
is
also
d
o
n
e
b
y
a
d
if
f
er
en
t
d
is
p
la
y
o
n
th
e
s
cr
ee
n
as
w
e
h
av
e
a
lr
ea
d
y
s
ai
d
.
I
ts
p
r
e
-
p
r
o
g
r
a
m
m
ed
Qu
er
ie
s
m
ed
ia
ar
e
n
o
w
i
n
d
is
p
en
s
ab
l
e
f
o
r
s
m
ar
tp
h
o
n
e
s
.
T
h
e
b
o
o
ts
tr
ap
s
ite
o
f
f
er
s
m
a
n
y
e
x
a
m
p
le
s
o
f
d
ir
ec
tl
y
u
s
ab
le
te
m
p
late
s
.
B
o
o
ts
tr
ap
is
a
s
s
o
c
iated
w
ith
t
h
e
L
es
s
p
r
ep
r
o
ce
s
s
o
r
,
a
lan
g
u
a
g
e
th
at
o
f
f
er
s
m
an
y
f
ea
tu
r
e
s
,
s
u
c
h
as
u
s
i
n
g
v
ar
iab
les
an
d
in
c
lu
d
i
n
g
p
o
r
tio
n
s
o
f
co
d
e.
I
t
is
th
u
s
p
o
s
s
ib
le
to
cu
s
to
m
ize
i
ts
C
SS
f
ile
w
i
th
t
h
e
ele
m
e
n
ts
an
d
th
e
co
lo
r
s
w
a
n
ted
.
T
h
e
b
o
o
ts
tr
ap
o
f
t
w
itter
i
s
a
s
af
e
b
et
in
ter
m
s
o
f
C
S
S f
r
a
m
e
w
o
r
k
s
[
1
0
]
,
[
1
1
]
.
B
o
o
ts
tr
ap
o
f
f
er
s
:
a.
a
r
esp
o
n
s
iv
e
g
r
id
,
C
SS
s
t
y
les
f
o
r
all
s
tan
d
ar
d
HT
ML
elem
e
n
t
s
(
f
o
r
m
,
b
u
tto
n
,
tex
t
,
i
m
a
g
e
.
.
.
)
b.
J
S c
o
m
p
o
n
e
n
ts
s
u
c
h
as d
y
n
a
m
ic
d
r
o
p
-
d
o
w
n
lis
t
s
,
in
ter
ac
tiv
e
n
av
i
g
atio
n
o
r
ca
r
o
u
s
el
c.
a
f
o
n
t
t
h
at
is
ac
t
u
all
y
a
s
et
o
f
ico
n
s
.
T
h
e
ad
v
an
ta
g
e
is
t
h
at
th
e
ico
n
s
ar
e
n
o
t
i
m
a
g
es
b
u
t
f
o
n
ts
,
th
e
y
ar
e
v
ec
to
r
ized
an
d
th
er
ef
o
r
e
al
w
a
y
s
s
h
ar
p
o
n
all
t
y
p
e
s
o
f
d
ev
ice
s
[
3
]
.
2
.
3
.
F
o
un
da
t
io
n
Fo
u
n
d
atio
n
w
a
s
cr
ea
ted
b
y
Z
UR
B
i
n
2
0
0
8
.
I
t
is
a
f
r
o
n
t
e
n
d
f
r
a
m
e
w
o
r
k
th
at
co
n
s
is
t
s
o
f
m
an
y
u
s
e
f
u
l
to
o
ls
f
o
r
cr
ea
tin
g
r
esp
o
n
s
i
v
e
an
d
m
o
b
ile
f
ir
s
t
m
o
b
ile
s
ite
s
.
P
r
im
ar
il
y
b
u
i
lt
w
it
h
HT
ML
,
C
SS
,
a
n
d
j
q
u
er
y
,
Fo
u
n
d
atio
n
u
s
e
s
m
o
d
er
n
tec
h
n
iq
u
es
an
d
p
r
ac
tices,
b
u
t
d
eg
r
ad
es
d
r
a
m
atica
ll
y
f
r
o
m
I
n
ter
n
et
E
x
p
lo
r
er
8
.
A
lt
h
o
u
g
h
th
e
Fra
m
e
w
o
r
k
i
s
m
o
s
t
co
m
m
o
n
l
y
u
s
ed
b
y
HT
ML
an
d
C
SS
d
ev
elo
p
er
s
,
th
e
d
ev
elo
p
er
h
as
th
e
o
p
p
o
r
tu
n
it
y
to
tak
e
it
s
m
ar
k
s
t
h
an
k
s
to
Fo
u
n
d
atio
n
in
co
llab
o
r
atio
n
w
it
h
Sa
s
s
a
n
d
R
ails
.
T
h
e
co
m
p
an
y
b
eh
i
n
d
Fo
u
n
d
atio
n
,
Z
UR
B
,
h
a
s
cr
ea
ted
a
r
ig
o
r
o
u
s
l
y
r
e
g
u
la
ted
s
et
o
f
to
o
ls
f
o
r
d
ev
elo
p
er
s
.
E
ac
h
m
o
d
u
le
h
as
it
s
r
o
le
to
p
lay
i
n
t
h
e
w
h
o
le
f
r
a
m
e
w
o
r
k
,
b
u
t
at
th
e
s
a
m
e
ti
m
e
ca
n
f
u
n
ct
io
n
co
m
p
let
el
y
i
n
d
ep
en
d
en
tl
y
o
f
th
e
ce
n
tr
a
l
lead
er
s
h
ip
.
W
h
at
th
is
m
ea
n
s
t
h
en
i
s
th
at
t
h
e
d
ev
elo
p
er
ca
n
co
m
b
i
n
e
an
d
co
m
b
in
e
t
h
e
f
ea
tu
r
es
o
f
h
i
s
cu
r
r
en
t
p
r
o
j
ec
t,
o
r
tak
e
a
s
in
g
le
f
ea
tu
r
e
an
d
ad
d
it
to
an
o
ld
e
r
p
r
o
ject.
I
t
ca
n
ev
en
ad
d
it
as
a
f
e
atu
r
e
to
a
d
if
f
er
e
n
t
Fra
m
e
w
o
r
k
.
I
n
s
u
m
m
ar
y
,
t
h
is
is
a
m
o
d
er
n
f
r
a
m
e
w
o
r
k
th
at
h
as
b
ee
n
w
ell
b
u
ilt
an
d
r
esp
o
n
d
s
to
a
w
id
e
v
ar
iet
y
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
1
,
Feb
r
u
ar
y
2
0
1
9
:
7
1
3
-
722
716
o
f
u
s
er
s
.
I
t
o
f
f
er
s
a
g
o
o
d
s
et
o
f
f
ea
tu
r
es.
I
t's
f
r
ee
,
an
d
th
er
e'
s
a
g
r
o
w
i
n
g
co
m
m
u
n
it
y
o
f
p
eo
p
le
to
h
elp
th
e
d
ev
elo
p
er
s
if
th
e
y
'r
e
s
t
u
c
k
[
1
0
]
.
Fig
u
r
e
2
.
Statis
tic
o
f
th
e
b
o
o
ts
tr
ap
an
d
f
o
u
n
d
atio
n
f
r
o
n
t
-
e
n
d
f
r
a
m
e
w
o
r
k
3.
CO
M
P
ARATI
VE
S
T
UDY
:
B
O
O
T
ST
RAP
VS
F
O
UN
DA
T
I
O
N
W
e
p
r
esen
t
b
elo
w
th
e
s
i
m
ila
r
ities
b
et
w
ee
n
th
e
t
w
o
f
r
a
m
e
w
o
r
k
s
,
t
h
e
r
esu
lts
ar
e
b
ased
o
n
[
8
]
,
[
5
]
s
tu
d
ie
s
.
a.
Op
en
s
o
u
r
ce
: B
o
th
f
r
a
m
e
w
o
r
k
s
w
o
r
k
u
n
d
er
MI
T
licen
s
e,
w
h
ich
m
ea
n
s
t
h
e
y
ar
e
f
r
ee
to
u
s
e
an
d
ad
ap
t.
b.
R
ea
cti
v
it
y
:
B
o
o
ts
tr
ap
an
d
F
o
u
n
d
atio
n
ar
e
r
ea
ctiv
e
r
i
g
h
t
o
u
t
o
f
th
e
b
o
x
.
T
h
e
y
ap
p
l
y
t
h
e
"
m
o
b
ile
f
ir
s
t"
ap
p
r
o
ac
h
,
w
h
ic
h
is
a
d
esi
g
n
m
et
h
o
d
o
lo
g
y
t
h
at
in
d
icate
s
t
h
at
it
is
b
est
to
f
ir
s
t
cr
ea
te
t
h
e
l
a
y
o
u
t
f
o
r
s
m
a
ller
s
cr
ee
n
s
,
t
h
en
ad
d
m
o
r
e
co
n
te
n
t a
n
d
f
ea
t
u
r
es a
s
y
o
u
g
o
.
as t
h
e
s
cr
ee
n
g
r
o
w
s
.
c.
12
-
co
lu
m
n
g
r
id
s
y
s
t
e
m
:
I
n
ter
m
s
o
f
f
r
a
m
e
w
o
r
k
s
,
a
g
r
id
s
y
s
te
m
g
i
v
es
t
h
e
d
ev
elo
p
er
th
e
p
o
w
er
to
ar
r
an
g
e
th
eir
w
eb
s
ite
o
r
ap
p
licatio
n
as
s
h
o
w
n
in
F
ig
u
r
e
3
an
d
4
.
B
o
th
f
r
a
m
e
w
o
r
k
s
h
a
v
e
:
a.
L
i
n
es a
n
d
co
lu
m
n
s
b.
A
b
ilit
y
to
n
e
s
t c
o
lu
m
n
s
i
n
r
o
w
s
,
an
d
v
ice
v
er
s
a
Fig
u
r
e
3
.
B
o
o
ts
tr
ap
g
r
id
ex
am
p
le
Fig
u
r
e
4
.
Fo
u
n
d
atio
n
g
r
id
ex
a
m
p
le
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2
0
8
8
-
8708
A
n
a
lyzi
n
g
b
o
o
ts
r
a
p
a
n
d
fo
u
n
d
a
tio
n
fo
n
t
-
e
n
d
fr
a
mewo
r
ks:
a
co
mp
a
r
a
tive
s
tu
d
y
(
Ma
jid
a
La
a
z
ir
i
)
717
d.
St
y
lized
C
SS
co
m
p
o
n
e
n
ts
:
B
o
o
ts
tr
ap
an
d
Fo
u
n
d
atio
n
in
cl
u
d
e
ad
d
itio
n
al
C
SS
s
t
y
l
es
f
o
r
d
if
f
er
e
n
t
co
m
p
o
n
e
n
t
s
o
f
t
h
e
w
eb
p
ag
e
,
s
u
c
h
as
t
y
p
o
g
r
ap
h
y
,
tab
les,
f
o
r
m
s
,
n
a
v
i
g
atio
n
b
ar
,
b
u
tto
n
s
,
p
ag
i
n
atio
n
,
lab
els,
p
r
o
g
r
ess
b
ar
etc
as sh
o
w
n
i
n
Fi
g
u
r
e
.
5
.
Fig
u
r
e
5
.
T
h
e
d
if
f
er
en
t c
o
m
p
o
n
en
t
s
o
f
b
o
o
ts
tr
ap
an
d
f
o
u
n
d
at
io
n
T
ab
le
1
p
r
esen
t
t
h
e
b
asic
c
h
ar
ac
ter
is
tic
s
o
f
ea
ch
Fra
m
e
w
o
r
k
,
a
d
etailed
d
escr
ip
tio
n
o
f
ea
ch
f
r
a
m
e
w
o
r
k
ca
n
b
e
f
o
u
n
d
i
n
[
1
2
]
,
[
2
]
.
T
ab
le
2
p
r
esen
ts
th
e
C
SS
ch
ar
ater
is
tics
f
o
r
ea
ch
f
r
a
m
e
w
o
r
k
.
T
ab
le
3
p
r
esen
ts
t
h
e
c
h
ar
ater
is
tic
s
r
el
ated
to
g
r
id
s
an
d
t
h
e
r
esp
o
n
s
i
v
en
e
s
s
o
f
ea
c
h
f
r
a
m
e
w
o
r
k
.
T
ab
le
4
p
r
esen
ts
t
h
e
ch
ar
ater
is
tic
s
r
elate
d
to
th
e
u
s
er
in
ter
f
ac
e
(
UI
)
an
d
w
id
g
et
s
o
f
ea
ch
f
r
a
m
e
w
o
r
k
.
T
ab
le
1
.
B
o
o
ts
tr
ap
an
d
Fo
u
n
d
atio
n
C
o
m
p
ar
i
s
o
n
B
o
o
t
st
r
a
p
F
o
u
n
d
a
t
i
o
n
O
w
n
e
d
b
y
O
r
i
g
i
n
a
l
l
y
d
e
v
e
l
o
p
e
d
a
t
T
w
i
t
t
e
r
b
y
M
a
r
k
O
t
t
o
a
n
d
Ja
c
o
b
T
h
o
r
n
t
o
n
,
n
o
w
a
n
o
p
e
n
-
so
u
r
c
e
p
r
o
j
e
c
t
Z
U
R
B
,
a
w
e
b
d
e
v
e
l
o
p
me
n
t
c
o
mp
a
n
y
i
n
C
a
m
p
b
e
l
l
,
C
a
l
i
f
o
r
n
i
a
S
t
a
n
d
a
r
d
d
i
s
t
r
i
b
u
t
i
o
n
p
a
c
k
a
g
e
i
n
c
l
u
d
e
s
R
e
q
u
i
r
e
d
C
S
S
(
1
m
i
n
i
f
i
e
d
,
1
st
a
n
d
a
r
d
,
b
o
t
h
w
i
t
h
.
m
a
p
f
i
l
e
s)
;
r
e
q
u
i
r
e
d
Jav
a
S
c
r
i
p
t
(
1
m
i
n
i
f
i
e
d
,
1
st
a
n
d
a
r
d
)
.
F
o
r
me
r
t
h
e
me
i
s
i
n
c
o
r
p
o
r
a
t
e
d
i
n
S
a
ss
f
i
l
e
s,
a
c
t
i
v
a
t
e
d
b
y
v
a
r
i
a
b
l
e
s.
(
G
l
y
p
h
i
c
o
n
s
a
r
e
n
o
t
d
i
st
r
i
b
u
t
e
d
w
i
t
h
B
o
o
t
st
r
a
p
4
.
)
A
l
s
o
c
o
n
t
a
i
n
s
t
w
o
a
d
d
i
t
i
o
n
a
l
se
t
s
o
f
C
S
S
f
i
l
e
s
(
1
mi
n
i
f
i
e
d
,
1
s
t
a
n
d
a
r
d
,
b
o
t
h
w
i
t
h
.
m
a
p
f
i
l
e
s)
:
b
o
o
t
st
r
a
p
-
g
r
i
d
,
w
h
i
c
h
a
p
p
e
a
r
s
t
o
b
e
a
f
l
e
x
b
o
x
-
b
a
se
d
g
r
i
d
sy
st
e
m,
p
o
ssi
b
l
y
r
e
d
u
n
d
a
n
t
a
t
t
h
i
s
p
o
i
n
t
;
a
n
d
b
o
o
t
st
r
a
p
-
r
e
b
o
o
t
,
b
a
se
d
o
n
n
o
r
mal
i
z
e
.
c
ss.
A
C
D
N
i
s
a
v
a
i
l
a
b
l
e
f
o
r
st
a
n
d
a
r
d
d
i
st
r
i
b
u
t
i
o
n
f
i
l
e
s.
F
o
u
r
d
i
st
r
i
b
u
t
i
o
n
s
:
C
o
mp
l
e
t
e
,
Esse
n
t
i
a
l
,
C
u
s
t
o
m,
S
a
ss
.
C
o
m
p
l
e
t
e
v
e
r
si
o
n
i
n
c
l
u
d
e
s
c
o
mp
i
l
e
d
C
S
S
(
mi
n
i
f
i
e
d
a
n
d
n
o
t
)
,
p
l
u
s
c
o
mp
i
l
e
d
Jav
a
S
c
r
i
p
t
,
i
n
c
l
u
d
i
n
g
i
n
d
i
v
i
d
u
a
l
v
e
n
d
o
r
f
i
l
e
s.
Esse
n
t
i
a
l
i
n
c
l
u
d
e
s
t
y
p
o
g
r
a
p
h
y
,
g
r
i
d
,
R
e
v
e
a
l
,
a
n
d
I
n
t
e
r
c
h
a
n
g
e
o
n
l
y
.
C
u
s
t
o
m
c
a
n
b
e
c
u
st
o
mi
z
e
d
o
n
t
h
e
w
e
b
s
i
t
e
f
o
r
d
o
w
n
l
o
a
d
i
n
g
,
a
n
d
t
h
e
d
e
v
e
l
o
p
e
r
c
a
n
c
h
o
o
se
e
l
e
me
n
t
s
t
o
i
n
c
l
u
d
e
a
n
d
c
h
a
n
g
e
a
f
e
w
v
a
r
i
a
b
l
e
s.
T
h
e
S
a
ss
v
e
r
si
o
n
c
a
n
o
n
l
y
b
e
d
o
w
n
l
o
a
d
e
d
u
si
n
g
t
h
e
c
o
mm
a
n
d
l
i
n
e
,
F
o
u
n
d
a
t
i
o
n
C
L
I
o
r
Y
e
t
i
L
a
u
n
c
h
e
r
.
A
C
D
N
i
s
a
v
a
i
l
a
b
l
e
f
o
r
st
a
n
d
a
r
d
d
i
st
r
i
b
u
t
i
o
n
f
i
l
e
s.
A
d
d
i
t
i
o
n
a
l
J
a
v
a
S
c
r
i
p
t
l
i
b
r
a
r
i
e
s re
q
u
i
r
e
d
?
Y
e
s,
y
o
u
mu
st
d
o
w
n
l
o
a
d
o
r
l
i
n
k
t
o
a
C
D
N
se
p
a
r
a
t
e
l
y
:
j
Q
u
e
r
y
3
.
1
.
1
S
l
i
m
,
T
e
t
h
e
r
1
.
4
.
0
.
F
i
l
e
s
a
r
e
l
i
n
k
e
d
t
o
j
u
s
t
b
e
f
o
r
e
e
n
d
o
f
b
o
d
y
e
l
e
me
n
t
.
A
l
l
d
e
p
e
n
d
e
n
c
i
e
s
a
r
e
b
u
n
d
l
e
d
i
n
t
h
e
d
i
s
t
r
i
b
u
t
i
o
n
.
j
Q
u
e
r
y
i
s
r
e
q
u
i
r
e
d
,
b
u
t
i
t
i
s
p
a
r
t
o
f
t
h
e
d
i
st
r
i
b
u
t
i
o
n
.
F
i
l
e
s
a
r
e
l
i
n
k
e
d
t
o
j
u
st
b
e
f
o
r
e
e
n
d
o
f
b
o
d
y
e
l
e
me
n
t
.
B
r
o
w
s
e
r
su
p
p
o
r
t
L
a
t
e
st
v
e
r
si
o
n
s
o
f
:
C
h
r
o
me
(
mac
O
S
,
W
i
n
d
o
w
s,
i
O
S
a
n
d
A
n
d
r
o
i
d
)
,
S
a
f
a
r
i
(
mac
O
S
a
n
d
i
O
S
)
,
F
i
r
e
f
o
x
(
mac
O
S
,
W
i
n
d
o
w
s,
A
n
d
r
o
i
d
,
i
O
S
)
(
l
a
t
e
st
v
e
r
si
o
n
o
f
F
i
r
e
f
o
x
p
l
u
s
Ex
t
e
n
d
e
d
S
u
p
p
o
r
t
R
e
l
e
a
se
)
,
Ed
g
e
(
W
i
n
d
o
w
s,
W
i
n
d
o
w
s
1
0
M
o
b
i
l
e
)
,
O
p
e
r
a
(
mac
O
S
,
W
i
n
d
o
w
s)
,
A
n
d
r
o
i
d
B
r
o
w
s
e
r
&
W
e
b
V
i
e
w
5
.
0
+
,
W
i
n
d
o
w
s
1
0
M
o
b
i
l
e
,
I
n
t
e
r
n
e
t
Ex
p
l
o
r
e
r
1
0
+
L
a
st
t
w
o
v
e
r
si
o
n
s o
f
C
h
r
o
me
,
F
i
r
e
f
o
x
,
S
a
f
a
r
i
,
O
p
e
r
a
,
mo
b
i
l
e
S
a
f
a
r
i
,
I
n
t
e
r
n
e
t
E
x
p
l
o
r
e
r
mo
b
i
l
e
,
a
s
w
e
l
l
a
s
I
n
t
e
r
n
e
t
Ex
p
l
o
r
e
r
9
+
a
n
d
A
n
d
r
o
i
d
b
r
o
w
ser 2
.
3
+
I
n
t
e
r
n
e
t
Ex
p
l
o
r
e
r
su
p
p
o
r
t
I
n
t
e
r
n
e
t
Ex
p
l
o
r
e
r
1
0
a
n
d
h
i
g
h
e
r
(
B
o
o
t
st
r
a
p
3
r
e
c
o
mm
e
n
d
e
d
f
o
r
I
n
t
e
r
n
e
t
Ex
p
l
o
r
e
r
8
a
n
d
9
)
I
n
t
e
r
n
e
t
Ex
p
l
o
r
e
r
9
a
n
d
h
i
g
h
e
r
O
t
h
e
r
b
r
o
w
se
r
su
p
p
o
r
t
n
o
t
e
s
“
U
n
o
f
f
i
c
i
a
l
l
y
,
B
o
o
t
st
r
a
p
sh
o
u
l
d
l
o
o
k
a
n
d
b
e
h
a
v
e
w
e
l
l
e
n
o
u
g
h
i
n
C
h
r
o
mi
u
m
a
n
d
C
h
r
o
me
f
o
r
L
i
n
u
x
,
F
i
r
e
f
o
x
f
o
r
L
i
n
u
x
,
a
n
d
I
n
t
e
r
n
e
t
Ex
p
l
o
r
e
r
9
,
t
h
o
u
g
h
t
h
e
y
a
r
e
n
o
t
o
f
f
i
c
i
a
l
l
y
su
p
p
o
r
t
e
d
.
”
“
Jav
a
S
c
r
i
p
t
:
O
u
r
p
l
u
g
i
n
s
u
se
a
n
u
mb
e
r
o
f
h
a
n
d
y
EC
M
A
S
c
r
i
p
t
5
f
e
a
t
u
r
e
s
t
h
a
t
a
r
e
n
’
t
su
p
p
o
r
t
e
d
i
n
I
E8
.
”
L
i
c
e
n
se
a
n
d
c
o
p
y
r
i
g
h
t
C
o
d
e
a
n
d
d
o
c
u
me
n
t
a
t
i
o
n
c
o
p
y
r
i
g
h
t
(
2
0
1
1
t
o
2
0
1
7
)
o
f
t
h
e
B
o
o
t
st
r
a
p
a
u
t
h
o
r
s
a
n
d
T
w
i
t
t
e
r
,
I
n
c
.
C
o
d
e
r
e
l
e
a
se
d
u
n
d
e
r
t
h
e
M
I
T
L
i
c
e
n
se
.
D
o
c
s
r
e
l
e
a
sed
u
n
d
e
r
C
r
e
a
t
i
v
e
C
o
mm
o
n
s.
M
I
T
l
i
c
e
n
se
,
n
o
me
n
t
i
o
n
o
f
c
o
p
y
r
i
g
h
t
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
1
,
Feb
r
u
ar
y
2
0
1
9
:
7
1
3
-
722
718
T
ab
le
1
.
B
o
o
ts
tr
ap
an
d
Fo
u
n
d
atio
n
C
o
m
p
ar
i
s
o
n
B
o
o
t
st
r
a
p
F
o
u
n
d
a
t
i
o
n
B
u
i
l
d
t
o
o
l
s
“
B
o
o
t
st
r
a
p
u
se
s
G
r
u
n
t
f
o
r
i
t
s
C
S
S
a
n
d
J
a
v
a
S
c
r
i
p
t
b
u
i
l
d
sy
st
e
m
a
n
d
Je
k
y
l
l
f
o
r
t
h
e
w
r
i
t
t
e
n
d
o
c
u
me
n
t
a
t
i
o
n
.
O
u
r
G
r
u
n
t
f
i
l
e
i
n
c
l
u
d
e
s
c
o
n
v
e
n
i
e
n
t
me
t
h
o
d
s
f
o
r
w
o
r
k
i
n
g
w
i
t
h
t
h
e
f
r
a
me
w
o
r
k
,
i
n
c
l
u
d
i
n
g
c
o
mp
i
l
i
n
g
c
o
d
e
,
r
u
n
n
i
n
g
t
e
st
s
,
a
n
d
mo
r
e
.
”
(
T
o
a
c
c
e
ss
S
a
ss
f
i
l
e
s
,
y
o
u
mu
st
i
n
st
a
l
l
u
si
n
g
t
h
e
c
o
mm
a
n
d
l
i
n
e
,
t
h
e
N
o
d
e
.
j
s
-
p
o
w
e
r
e
d
F
o
u
n
d
a
t
i
o
n
C
L
I
,
o
r
w
i
t
h
i
t
s
Y
e
t
i
L
a
u
n
c
h
a
p
p
l
i
c
a
t
i
o
n
(
M
a
c
o
n
l
y
)
.
“
F
o
u
n
d
a
t
i
o
n
i
s
a
v
a
i
l
a
b
l
e
o
n
n
p
m,
B
o
w
e
r
,
M
e
t
e
o
r
,
a
n
d
C
o
mp
o
se
r
.
T
h
e
p
a
c
k
a
g
e
i
n
c
l
u
d
e
s
a
l
l
o
f
t
h
e
so
u
r
c
e
S
C
S
S
a
n
d
Jav
a
S
c
r
i
p
t
f
i
l
e
s,
a
s
w
e
l
l
a
s
c
o
mp
i
l
e
d
C
S
S
a
n
d
J
a
v
a
S
c
r
i
p
t
,
i
n
u
n
c
o
mp
r
e
sse
d
a
n
d
c
o
mp
r
e
sse
d
f
l
a
v
o
r
s.”
O
t
h
e
r
v
e
r
si
o
n
s o
f
F
o
u
n
d
a
t
i
o
n
a
r
e
a
v
a
i
l
a
b
l
e
a
s
si
mp
l
e
d
o
w
n
l
o
a
d
s
w
i
t
h
o
u
t
u
s
i
n
g
t
h
e
s
e
t
o
o
l
s,
b
u
t
w
i
t
h
o
u
t
S
C
S
S
f
i
l
e
s.
T
ab
le
2
.
C
SS
C
o
m
p
ar
is
o
n
B
o
o
t
st
r
a
p
F
o
u
n
d
a
t
i
o
n
R
e
se
t
r
e
b
o
o
t
.
c
ss(
_
r
e
b
o
o
t
.
sc
ss)
n
o
r
mal
i
z
e
.
c
ss
L
E
S
S
Y
e
s
No
S
a
ss/
S
c
ss
Y
e
s
Y
e
s
T
ab
le
3
.
Gr
id
s
an
d
R
esp
o
n
s
iv
en
es
s
C
o
m
p
ar
is
o
n
B
o
o
t
st
r
a
p
F
o
u
n
d
a
t
i
o
n
B
a
se
w
i
d
t
h
F
l
u
i
d
(
0
,
3
4
e
m,
4
8
e
m,
6
2
e
m,
7
5
e
m)
F
l
u
i
d
(
max
-
w
i
d
t
h
7
5
r
e
m d
e
f
a
u
l
t
)
C
o
l
u
mn
s
12
1
-
i
n
f
i
n
i
t
y
(
1
2
d
e
f
a
u
l
t
)
S
i
n
g
l
e
c
o
l
u
mn
c
l
a
ss sy
n
t
a
x
.col
-
xs
-
1
.col
-
sm
-
1
.col
-
md
-
1
.col
-
lg
-
1
.col
-
xl
-
1
.small
-
1.columns
.medium
-
1.columns
.large
-
1.columns
.[custom]
-
1.columns
C
o
n
t
a
i
n
e
r
sy
n
t
a
x
<div
class="container">
or
<div
class="container
-
fluid">
<
div
class="row">
N
e
st
e
d
c
o
l
u
mn
sy
n
t
a
x
<div
class="row">
<div
class="col
-
sm
-
9">
<div
class="row">
<!
--
nested
columns
add
up
to
12
--
>
<div
class="col
-
xs
-
8
col
-
sm
-
6">...</div>
<div
class="col
-
xs
-
4
col
-
sm
-
6">...</div>
</div>
<
/div>
</div>
<div
class="row">
<div
class="small
-
6
columns">
<div
class="row">
<!
--
nested
columns
add
up
to
12
--
>
<div
class="small
-
6
columns">...</div>
<div
class="small
-
6
columns">...</div>
</div>
</div>
</div>
V
isib
il
it
y
c
las
s s
y
n
ta
x
Viewport
-
based:
.hidden
-
xs
-
down
.hidden
-
sm
-
down
.hidden
-
md
-
down
.hidden
-
lg
-
down
.hidden
-
xl
-
down
.hidden
-
xs
-
up
.hidden
-
sm
-
up
.hidden
-
md
-
up
.hidden
-
lg
-
up
.hidden
-
xl
-
up
Screen
Size:
.show
-
for
-
medium
.show
-
for
-
[custom]
.show
-
for
-
medium
-
only
.show
-
for
-
[custom]
-
only
.hide
-
for
-
medium
.hide
-
for
-
[custom]
.hide
-
for
-
medium
-
only
.hide
-
for
-
[custom]
-
only
Generic
(CAUTION:
hides
from
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2
0
8
8
-
8708
A
n
a
lyzi
n
g
b
o
o
ts
r
a
p
a
n
d
fo
u
n
d
a
tio
n
fo
n
t
-
e
n
d
fr
a
mewo
r
ks:
a
co
mp
a
r
a
tive
s
tu
d
y
(
Ma
jid
a
La
a
z
ir
i
)
719
T
ab
le
3
.
Gr
id
s
an
d
R
esp
o
n
s
iv
en
es
s
C
o
m
p
ar
is
o
n
B
o
o
t
st
r
a
p
F
o
u
n
d
a
t
i
o
n
Print
-
based:
.visible
-
print
-
block
.visible
-
print
-
inline
.visible
-
print
-
inline
-
block
.hidden
-
print
screenreaders):
.hide
(display:
none;)
.invisible
(visibility:
hidden;)
Orientation:
.show
-
for
-
landscape
.show
-
for
-
portrait
.hide
-
for
-
landscape
.hide
-
for
-
portrait
Accessibility:
.show
-
for
-
sr
(hides
visually
only)
.show
-
on
-
focus
(for
skip
-
lin
T
ab
le
4
.
User
I
n
ter
f
ac
e
(
UI
)
a
n
d
W
id
g
ets
B
o
o
t
st
r
a
p
F
o
u
n
d
a
t
i
o
n
A
l
e
r
t
s
Y
e
s
Y
e
s
—
C
a
l
l
o
u
t
B
r
e
a
d
c
r
u
mb
s
Y
e
s
Y
e
s
B
u
t
t
o
n
s
Y
e
s
Y
e
s
C
a
r
o
u
se
l
Y
e
s
Y
e
s
—
O
r
b
i
t
i
s
b
a
c
k
C
o
l
l
a
p
se
/
A
c
c
o
r
d
i
o
n
Y
e
s
—
C
o
l
l
a
p
se
Y
e
s
—
A
c
c
o
r
d
i
o
n
D
r
o
p
d
o
w
n
Y
e
s
Y
e
s
—
D
r
o
p
d
o
w
n
,
D
r
i
l
l
d
o
w
n
,
&
A
c
c
o
r
d
i
o
n
me
n
u
s
F
o
r
ms
Y
e
s
Y
e
s
F
o
r
m V
a
l
i
d
a
t
i
o
n
Y
e
s
Y
e
s
—
A
b
i
d
e
G
r
i
d
s
Y
e
s
Y
e
s
I
c
o
n
s
Y
e
s
Y
e
s
—
w
i
t
h
d
o
w
n
l
o
a
d
L
a
b
e
l
s
Y
e
s
Y
e
s
P
a
g
i
n
a
t
i
o
n
Y
e
s
Y
e
s
P
a
n
e
l
s
Y
e
s
—
n
o
w
C
a
r
d
s
Y
e
s
—
C
a
l
l
o
u
t
P
r
o
g
r
e
ss b
a
r
s
Y
e
s
Y
e
s
R
e
sp
o
n
s
i
v
e
me
d
i
a
No
Y
e
s
—
I
n
t
e
r
c
h
a
n
g
e
T
a
b
l
e
s
Y
e
s
Y
e
s
T
o
o
l
t
i
p
s
Y
e
s
Y
e
s
4.
DIS
CU
SS
I
O
N
O
F
R
E
SU
L
T
S
I
n
t
h
is
s
ec
tio
n
w
e
d
ep
ict
t
h
e
d
if
f
er
en
ce
s
b
et
w
ee
n
B
o
o
ts
tr
ap
an
d
Fo
u
n
d
atio
n
.
W
e
p
r
es
en
ts
tr
o
u
g
h
T
ab
le
5
th
e
m
ain
r
es
u
lt
s
d
er
iv
ed
f
r
o
m
o
u
r
s
t
u
d
y
.
T
ab
le
5
.
R
esu
lts
o
f
C
o
m
p
ar
is
o
n
C
S
S
P
r
e
p
r
o
c
e
sso
r
B
o
t
h
F
o
u
n
d
a
t
i
o
n
6
a
n
d
B
o
o
t
st
r
a
p
4
f
r
a
me
w
o
r
k
s a
r
e
b
a
se
d
o
n
S
A
S
S
.
T
h
e
y
b
o
t
h
h
a
v
e
a
g
o
o
d
se
t
o
f
mi
x
i
n
s
,
a
se
p
a
r
a
t
e
p
a
r
a
me
t
e
r
sh
e
e
t
,
r
e
u
sa
b
l
e
c
o
mp
o
n
e
n
t
s,
a
n
d
so
o
n
.
Jav
a
S
c
r
i
p
t
T
h
e
B
o
o
t
st
r
a
p
4
a
n
d
F
o
u
n
d
a
t
i
o
n
6
Ja
v
a
S
c
r
i
p
t
l
i
b
r
a
r
i
e
s
a
r
e
w
r
i
t
t
e
n
o
n
ES6
,
w
h
i
c
h
me
a
n
s
t
h
a
t
t
h
e
d
e
v
e
l
l
o
p
p
e
r
d
o
e
s
n
o
t
n
e
e
d
B
a
b
e
l
(
o
r
a
n
y
o
t
h
e
r
t
r
a
n
sp
i
l
e
r
)
i
f
i
t
w
a
n
t
s
t
o
i
n
d
i
v
i
d
u
a
l
l
y
i
n
c
l
u
d
e
e
a
c
h
o
f
t
h
e
i
r
JS
t
o
o
l
s
i
n
i
t
s
d
e
v
e
l
o
p
me
n
t
p
i
p
e
l
i
n
e
.
H
o
w
e
v
e
r
,
t
h
e
y
b
o
t
h
h
a
v
e
ES5
t
r
a
n
s
p
i
r
e
d
v
e
r
si
o
n
s
o
f
e
a
c
h
c
o
mp
o
n
e
n
t
.
S
t
a
b
i
l
i
t
y
T
h
e
B
o
o
t
sr
a
p
t
e
a
m
t
a
k
e
s
s
t
a
b
i
l
i
t
y
a
n
d
b
a
c
k
w
a
r
d
c
o
m
p
a
t
i
b
i
l
i
t
y
se
r
i
o
u
sl
y
.
T
h
e
y
u
se
S
a
u
c
e
l
a
b
s'
a
u
t
o
mat
e
d
t
e
st
i
n
g
t
o
o
l
s
t
o
e
n
su
r
e
t
h
a
t
e
v
e
r
y
t
h
i
n
g
p
a
sse
s
a
t
e
st
b
e
f
o
r
e
e
n
g
a
g
i
n
g
i
n
t
h
e
i
r
m
a
i
n
b
r
a
n
c
h
.
T
h
e
r
e
su
l
t
i
s a
se
t
o
f
v
e
r
y
st
a
b
l
e
t
o
o
l
s t
h
a
t
c
a
n
b
e
u
se
d
a
s
a
d
a
i
l
y
d
r
i
v
e
r
.
F
o
u
n
d
a
t
i
o
n
,
o
n
t
h
e
o
t
h
e
r
h
a
n
d
,
w
a
s
r
e
l
e
a
se
d
a
s
"
st
a
b
l
e
"
a
l
i
t
t
l
e
o
v
e
r
a
y
e
a
r
a
g
o
.
A
t
f
i
r
st
l
a
u
n
c
h
,
so
me
c
o
mp
o
n
e
n
t
s
w
e
r
e
u
n
f
i
n
i
sh
e
d
,
l
i
k
e
A
b
i
d
e
(
t
h
e
i
r
f
o
r
m
v
a
l
i
d
a
t
i
o
n
l
i
b
r
a
r
y
)
w
h
i
c
h
w
a
s
c
o
mp
l
e
t
e
l
y
b
r
o
k
e
n
,
so
t
h
e
i
r
c
o
l
o
r
p
a
l
e
t
t
e
se
t
t
i
n
g
s.
F
r
o
m
6
t
o
6
.
3
,
t
h
e
t
e
a
m
c
h
a
n
g
e
d
a
n
u
m
b
e
r
o
f
t
h
i
n
g
s
b
y
mak
i
n
g
so
me
se
t
t
i
n
g
s
o
b
so
l
e
t
e
a
n
d
i
n
t
r
o
d
u
c
i
n
g
t
h
i
n
g
s
l
i
k
e
ES
6
t
o
6
.
2
.
T
h
e
o
f
f
c
a
n
v
a
s
h
a
s
b
e
e
n
r
e
o
r
g
a
n
i
z
e
d
a
n
d
t
h
e
p
a
r
a
me
t
e
r
s a
r
e
v
e
r
y
f
l
e
x
i
b
l
e
i
n
6
.
3
.
S
i
n
c
e
F
o
u
n
d
a
t
i
o
n
6
h
a
s
b
e
e
n
r
e
l
e
a
sed
,
i
t
s
st
a
b
i
l
i
t
y
i
s
n
o
w
e
x
c
e
l
l
e
n
t
.
T
h
e
c
o
mp
o
n
e
n
t
s
se
e
m
t
o
b
e
w
e
l
l
t
e
st
e
d
a
n
d
t
h
e
t
e
a
m
p
u
b
l
i
s
h
e
s u
p
d
a
t
e
s a
l
mo
st
e
v
e
r
y
3
-
4
mo
n
t
h
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
1
,
Feb
r
u
ar
y
2
0
1
9
:
7
1
3
-
722
720
T
ab
le
5
.
R
esu
lts
o
f
C
o
m
p
ar
is
o
n
(
co
n
tin
u
e
)
C
S
S
P
r
e
p
r
o
c
e
sso
r
B
o
t
h
F
o
u
n
d
a
t
i
o
n
6
a
n
d
B
o
o
t
st
r
a
p
4
f
r
a
me
w
o
r
k
s a
r
e
b
a
se
d
o
n
S
A
S
S
.
T
h
e
y
b
o
t
h
h
a
v
e
a
g
o
o
d
se
t
o
f
mi
x
i
n
s
,
a
se
p
a
r
a
t
e
p
a
r
a
me
t
e
r
sh
e
e
t
,
r
e
u
sa
b
l
e
c
o
mp
o
n
e
n
t
s,
a
n
d
so
o
n
.
G
r
i
d
B
o
o
t
st
r
a
p
a
n
d
F
o
u
n
d
a
t
i
o
n
su
p
p
o
r
t
r
e
sp
o
n
si
v
e
g
r
i
d
s
a
n
d
f
l
e
x
i
b
l
e
b
r
e
a
k
p
o
i
n
t
s
.
H
o
w
e
v
e
r
,
F
o
u
n
d
a
t
i
o
n
su
p
p
o
r
t
s re
sp
o
n
s
i
v
e
g
u
t
t
e
r
s,
w
h
i
c
h
a
r
e
so
e
a
sy
t
o
c
o
n
f
i
g
u
r
e
a
n
d
se
e
m ma
g
i
c
a
l
.
C
o
l
l
a
p
s
e
d
g
u
t
t
e
r
s
a
r
e
a
l
so
a
t
h
i
n
g
i
n
F
o
u
n
d
a
t
i
o
n
.
T
h
e
d
e
v
e
l
o
p
e
r
may
h
a
v
e
o
r
r
e
mo
v
e
g
u
t
t
e
r
s
i
n
sp
e
c
i
f
i
c
c
a
se
s
t
h
a
t
d
o
n
o
t
r
e
q
u
i
r
e
t
h
e
m
si
m
p
l
y
b
y
a
d
d
i
n
g
a
c
l
a
ss.
O
t
h
e
r
t
h
i
n
g
s
l
i
k
e
c
e
n
t
e
r
e
d
c
o
l
u
mn
s
a
n
d
b
l
o
c
k
g
r
i
d
s
ma
k
e
t
h
e
F
o
u
n
d
a
t
i
o
n
t
h
e
w
i
n
n
e
r
i
n
g
r
i
d
s
.
A
s
f
a
r
a
s
b
a
c
k
w
a
r
d
c
o
mp
a
t
i
b
i
l
i
t
y
i
s
c
o
n
c
e
r
n
e
d
,
F
o
u
n
d
a
t
i
o
n
a
n
d
B
o
o
t
s
t
r
a
p
u
se
t
h
e
sa
me
c
l
a
ss
c
o
n
v
e
n
t
i
o
n
a
s t
h
e
i
r
p
r
e
v
i
o
u
s v
e
r
si
o
n
s.
T
h
i
s m
a
k
e
s
t
h
e
m
i
g
r
a
t
i
o
n
a
s
p
a
i
n
l
e
ss a
s p
o
ss
i
b
l
e
.
F
l
e
x
b
o
x
g
r
i
d
s
a
r
e
a
l
so
a
v
a
i
l
a
b
l
e
o
n
F
o
u
n
d
a
t
i
o
n
a
n
d
B
o
o
t
st
r
a
p
a
s
a
se
p
a
r
a
t
e
se
t
t
i
n
g
t
h
a
t
t
h
e
d
e
v
e
l
o
p
e
r
c
a
n
t
u
r
n
o
n
/
o
f
f
b
a
se
d
o
n
s
u
p
p
o
r
t
f
o
r
t
h
e
i
r
t
a
r
g
e
t
b
r
o
w
se
r
.
f
o
r
ms
I
n
B
o
o
t
st
r
a
p
4
,
t
h
e
r
e
a
r
e
sp
e
c
i
a
l
c
l
a
sse
s
f
o
r
r
a
d
i
o
s
a
n
d
c
h
e
c
k
b
o
x
e
s
t
h
a
t
w
i
l
l
mak
e
t
h
e
m
m
u
c
h
b
e
t
t
e
r
t
h
a
n
t
h
e
d
e
f
a
u
l
t
o
n
e
s o
f
t
h
e
b
r
o
w
s
e
r
.
O
n
l
i
n
e
f
o
r
ms,
v
a
l
i
d
a
t
i
o
n
i
c
o
n
s
,
a
n
d
i
c
o
n
l
a
b
e
l
s a
r
e
a
l
so
v
e
r
y
p
o
w
e
r
f
u
l
o
n
B
o
o
t
st
r
a
p
.
F
o
u
n
d
a
t
i
o
n
6
h
a
s a
s
i
m
p
l
e
r
f
o
r
m
l
a
y
o
u
t
t
h
a
t
i
s h
e
a
v
i
l
y
d
e
p
e
n
d
e
n
t
o
n
t
h
e
g
r
i
d
.
O
n
l
i
n
e
f
o
r
ms
d
o
n
o
t
e
x
i
st
i
n
t
h
e
F
o
u
n
d
a
t
i
o
n
,
w
h
i
c
h
i
s
a
l
m
o
st
mi
sse
d
.
I
n
a
d
d
i
t
i
o
n
,
p
r
e
d
e
f
i
n
e
d
f
i
e
l
d
s
a
r
e
p
r
o
h
i
b
i
t
e
d
o
n
F
o
u
n
d
a
t
i
o
n
,
so
t
h
e
d
e
v
e
l
o
p
e
r
mu
st
r
e
l
y
o
n
e
x
t
e
r
n
a
l
C
S
S
t
o
j
u
st
i
f
y
i
t
s
se
l
e
c
t
i
o
n
b
o
x
e
s,
r
a
d
i
o
b
u
t
t
o
n
s a
n
d
c
h
e
c
k
b
o
x
e
s.
M
e
n
u
s
W
h
i
l
e
B
o
o
t
st
r
a
p
4
h
a
s
t
h
e
same
o
l
d
d
r
o
p
-
d
o
w
n
l
i
st
s
,
t
a
b
s,
a
n
d
b
a
s
i
c
n
a
v
i
g
a
t
i
o
n
me
n
u
s
t
h
a
t
w
e
l
e
a
r
n
e
d
f
r
o
m
v
e
r
si
o
n
3
,
F
o
u
n
d
a
t
i
o
n
h
a
s
d
r
a
m
a
t
i
c
a
l
l
y
i
mp
r
o
v
e
d
t
h
e
i
r
d
r
o
p
-
d
o
w
n
l
i
st
s
b
y
i
n
c
l
u
d
i
n
g
o
t
h
e
r
v
a
r
i
a
t
i
o
n
s
t
h
a
t
m
i
g
h
t
b
e
u
se
f
u
l
i
n
so
me
c
a
se
.
B
r
o
w
s
e
r
su
p
p
o
r
t
B
o
t
h
f
r
a
me
w
o
r
k
s
su
p
p
o
r
t
t
h
e
f
o
l
l
o
w
i
n
g
b
r
o
w
se
r
s
:
C
h
r
o
me
(
M
a
c
,
W
i
n
d
o
w
s,
i
O
S
a
n
d
A
n
d
r
o
i
d
)
,
S
a
f
a
r
i
(
M
a
c
a
n
d
i
O
S
o
n
l
y
)
,
F
i
r
e
f
o
x
(
M
a
c
a
n
d
W
i
n
d
o
w
s)
a
n
d
O
p
e
r
a
(
M
a
c
a
n
d
W
i
n
d
o
w
s)
.
H
o
w
e
v
e
r
,
t
h
e
r
e
i
s a
sl
i
g
h
t
d
i
f
f
e
r
e
n
c
e
w
i
t
h
r
e
g
a
r
d
t
o
I
n
t
e
r
n
e
t
Ex
p
l
o
r
e
r
-
B
o
o
t
st
r
a
p
su
p
p
o
r
t
s
I
E8
a
n
d
n
e
w
e
r
v
e
r
si
o
n
s,
w
h
i
l
e
F
o
u
n
d
a
t
i
o
n
st
a
r
t
s a
t
I
E9
p
l
u
s
n
e
w
e
r
v
e
r
si
o
n
s.
C
S
S
p
r
e
p
r
o
c
e
sso
r
s
B
o
o
t
st
r
a
p
i
n
c
l
u
d
e
s
S
A
S
S
a
n
d
L
ESS
f
i
l
e
s,
w
h
i
c
h
me
a
n
s
t
h
a
t
i
t
c
a
n
b
e
u
se
d
i
n
a
p
p
l
i
c
a
t
i
o
n
s t
h
a
t
u
se
o
n
e
o
f
t
h
e
se
C
S
S
p
r
e
p
r
o
c
e
sso
r
s.
O
n
t
h
e
o
t
h
e
r
h
a
n
d
,
F
o
u
n
d
a
t
i
o
n
o
n
l
y
su
p
p
o
r
t
s SA
S
S
.
Af
ter
th
e
co
m
p
ar
ati
v
e
s
t
u
d
y
o
f
th
e
t
w
o
f
r
o
n
t
-
en
d
f
r
a
m
e
w
o
r
k
s
B
o
o
ts
tr
ap
an
d
f
o
u
n
d
atio
n
,
w
e
s
ee
t
h
at
ea
ch
f
r
a
m
e
w
o
r
k
h
a
s
its
o
w
n
f
ea
tu
r
es
an
d
b
en
e
f
its
a
n
d
th
e
c
h
o
ice
b
et
w
ee
n
th
e
s
e
t
w
o
f
r
a
m
e
w
o
r
k
s
d
ep
en
d
s
o
n
th
e
n
ee
d
s
o
f
th
e
d
ev
e
lo
p
er
'
s
web
ap
p
licatio
n
.
T
o
h
elp
th
e
d
ev
e
lo
p
er
ch
o
o
s
e
th
e
r
i
g
h
t
f
r
a
m
e
w
o
r
k
f
o
r
th
e
d
esig
n
o
f
h
is
p
r
o
j
ec
t,
w
e
p
r
esen
t
th
e
m
a
in
ad
v
an
ta
g
es
o
f
ea
c
h
f
r
a
m
e
w
o
r
k
:
th
e
f
ir
s
t o
n
e
is
B
o
o
ts
tr
ap
:
a.
Ma
s
s
i
v
e
co
m
m
u
n
it
y
s
u
p
p
o
r
t:
Giv
e
n
th
e
h
u
g
e
p
o
p
u
lar
it
y
o
f
B
o
o
ts
tr
ap
,
t
h
er
e
is
a
lar
g
e
co
m
m
u
n
it
y
u
s
i
n
g
th
e
Fra
m
e
w
o
r
k
.
T
h
er
ef
o
r
e
,
if
th
e
d
ev
elo
p
er
h
a
s
a
q
u
es
tio
n
ab
o
u
t
B
o
o
ts
tr
ap
,
h
e
i
s
m
o
r
e
lik
e
l
y
to
f
i
n
d
q
u
ick
l
y
an
a
n
s
w
er
.
Fu
r
t
h
er
,
th
er
e
ar
e
m
o
r
e
tu
to
r
ials
a
s
w
ell
a
s
f
u
ll c
o
u
r
s
e
s
o
n
h
o
w
to
u
s
e
B
o
o
ts
tr
ap
.
b.
Oth
er
th
e
m
es
a
v
ailab
le:
B
ec
au
s
e
o
f
its
p
o
p
u
lar
it
y
,
th
er
e
ar
e
o
th
er
B
o
o
ts
tr
ap
th
em
e
s
.
T
h
is
m
ea
n
s
th
a
t
if
t
h
e
d
ev
elo
p
er
u
s
es a
p
latf
o
r
m
lik
e
W
o
r
d
P
r
ess
an
d
is
lo
o
k
in
g
f
o
r
a
th
e
m
e
to
u
s
e,
t
h
is
m
i
g
h
t b
e
a
b
etter
o
p
tio
n
.
c.
B
etter
b
r
o
w
s
er
co
m
p
atib
ilit
y
d.
C
an
u
s
e
L
es
s
o
r
Sas
s
Ma
n
y
p
r
o
f
ess
io
n
al
w
eb
s
ite
s
h
av
e
u
s
ed
B
o
o
ts
tr
ap
to
cr
ea
te
eleg
a
n
t
a
n
d
f
u
n
ctio
n
al
p
a
g
es
.
Am
o
n
g
th
e
m
:
Ne
w
s
w
ee
k
,
Vo
g
u
e
a
n
d
L
y
f
t
.
W
e
p
r
esen
t tr
o
u
g
h
Fi
g
u
r
e
6
,
th
e
s
tatis
tic
s
ab
o
u
t t
h
e
u
s
e
o
f
th
i
s
f
r
a
m
e
w
o
r
k
.
Fig
u
r
e
6
.
B
o
o
ts
tr
ap
p
o
p
u
lar
w
eb
s
ite
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2
0
8
8
-
8708
A
n
a
lyzi
n
g
b
o
o
ts
r
a
p
a
n
d
fo
u
n
d
a
tio
n
fo
n
t
-
e
n
d
fr
a
mewo
r
ks:
a
co
mp
a
r
a
tive
s
tu
d
y
(
Ma
jid
a
La
a
z
ir
i
)
721
L
i
k
e
w
is
e,
w
e
p
r
ese
n
t t
h
e
ad
v
a
n
tag
e
s
o
f
Fo
u
n
d
atio
n
Fra
m
e
wo
r
k
:
a.
Mo
r
e
th
an
o
n
e
d
esi
g
n
ap
p
r
o
ac
h
b
y
t
h
e
d
e
v
elo
p
er
:
Fo
u
n
d
atio
n
p
r
o
v
id
es
a
b
etter
e
n
v
ir
o
n
m
e
n
t
f
o
r
cu
s
to
m
izi
n
g
t
h
e
w
eb
s
ite.
A
l
t
h
o
u
g
h
it
is
p
o
s
s
ib
le
to
cu
s
to
m
ize
w
it
h
B
o
o
ts
tr
ap
,
it
tak
es
a
lo
t
o
f
ef
f
o
r
t
f
o
r
th
e
d
ev
elo
p
er
s
ite
to
lo
o
k
lik
e
o
th
er
B
o
o
ts
tr
ap
s
ites
.
W
ith
Fo
u
n
d
atio
n
,
th
e
d
etac
h
ed
C
SS
d
esi
g
n
is
a
lig
h
t
w
ei
g
h
t d
esig
n
a
n
d
th
e
d
ev
elo
p
er
d
o
es n
o
t h
av
e
to
p
u
t a
l
o
t o
f
ef
f
o
r
t i
n
to
cu
s
to
m
izi
n
g
it
.
b.
Fo
u
n
d
atio
n
d
o
es
n
o
t
n
ee
d
to
ad
d
class
es
to
b
e
r
esp
o
n
s
iv
e
o
r
h
av
e
a
ce
r
tai
n
s
t
y
le:
I
f
t
h
e
d
ev
elo
p
er
d
o
es
n
o
t
ad
d
th
e
co
r
r
ec
t
C
SS
c
lass
es
with
B
o
o
ts
tr
ap
,
th
e
ef
f
ec
ts
d
o
n
o
t
ap
p
ea
r
.
W
ith
Fo
u
n
d
atio
n
,
t
h
er
e
ar
e
b
u
ilt
-
i
n
b
asic
C
SS
ap
p
ea
r
an
ce
s
.
So
m
e
m
a
y
p
r
ef
er
th
is
,
esp
ec
iall
y
s
in
ce
t
h
er
e
w
il
l
n
o
t
b
e
as
m
u
c
h
C
SS
i
n
its
HT
ML
.
c.
Mo
r
e
f
ea
tu
r
e
s
o
f
th
e
g
r
id
s
y
s
te
m
:
Ma
n
y
p
r
ef
er
t
h
e
Fo
u
n
d
atio
n
g
r
id
s
y
s
te
m
b
ec
a
u
s
e
t
h
e
y
f
i
n
d
it
o
f
f
er
s
m
o
r
e
f
le
x
ib
ilit
y
.
So
m
e
ad
d
itio
n
al
ab
ilit
ie
s
:
1.
T
h
e
ab
ilit
y
to
ce
n
ter
co
lu
m
n
s
2.
T
h
e
d
ev
elo
p
er
ca
n
ad
d
a
"
co
ll
ap
s
e"
class
th
at
allo
w
s
h
i
m
to
ea
s
il
y
ed
it
co
l
u
m
n
s
a
n
d
r
e
m
o
v
e
g
u
tter
s
.
3.
C
an
u
s
e
a
b
lo
ck
g
r
id
t
h
at
allo
w
s
y
o
u
to
cr
ea
te
co
lu
m
n
s
o
f
e
q
u
al
s
ize
w
it
h
m
in
i
m
al
m
ar
k
u
p
.
d.
Oth
er
b
u
ilt
-
i
n
w
id
g
ets:
W
it
h
r
e
g
ar
d
to
ad
d
itio
n
al
co
m
p
o
n
en
ts
an
d
J
S
ex
ten
s
io
n
s
,
B
o
o
ts
tr
ap
an
d
Fo
u
n
d
atio
n
ar
e
b
asicall
y
eq
u
a
l
.
Her
e
ar
e
s
o
m
e
ex
tr
a
th
at
Fo
u
n
d
atio
n
.
1.
Fo
r
m
v
alid
atio
n
,
A
b
id
e
:
HT
ML
5
f
o
r
m
v
alid
at
io
n
lib
r
ar
y
2.
Me
n
u
s
o
f
f
ca
n
v
as :
t
h
e
d
ev
elo
p
er
ea
s
il
y
p
lace
s
th
e
n
a
v
ig
at
io
n
o
f
h
is
s
i
te
o
n
th
e
s
id
e
o
f
h
i
s
s
ite
3.
P
r
icin
g
tab
les
:
r
ea
d
y
-
to
-
u
s
e
tab
le,
d
esig
n
ed
to
d
is
p
la
y
th
e
p
r
ices
o
f
a
p
r
o
d
u
ct
b
y
s
u
b
s
cr
ip
tio
n
R
esp
o
n
s
iv
e
m
ed
ia
4.
R
ea
cti
v
e
m
ed
ia,
e
x
c
h
an
g
e
:
t
h
e
w
eb
s
ite
lo
ad
s
d
if
f
er
en
t
m
e
d
ia
f
o
r
d
if
f
er
en
t
d
e
v
ices
/
s
cr
ee
n
s
ize
s
,
s
o
th
at
t
h
e
d
ev
elo
p
er
ca
n
cu
s
to
m
i
ze
th
e
u
s
er
ex
p
er
ien
ce
5.
Su
p
p
o
r
t
f
r
o
m
r
i
g
h
t
to
lef
t
:
t
h
e
d
ev
elo
p
er
th
e
d
ir
ec
tio
n
o
f
t
h
e
te
x
t
;
I
d
ea
l
f
o
r
s
i
tes
i
n
o
th
er
lan
g
u
a
g
es
w
h
er
e
ch
ar
ac
ter
s
m
o
v
e
f
r
o
m
r
i
g
h
t to
le
f
t
6.
Sit
es
u
s
i
n
g
Fo
u
n
d
atio
n
as
s
h
o
w
n
i
n
Fi
g
u
r
e
7
:
J
u
s
t
lik
e
B
o
o
ts
tr
ap
,
Fo
u
n
d
atio
n
i
s
u
s
ed
b
y
b
ig
n
a
m
e
s
.
Am
o
n
g
t
h
e
m
:
P
B
S
,
Natio
n
al
Geo
g
r
ap
h
ic
,
T
h
e
W
ash
in
g
to
n
an
d
P
o
s
tMo
zilla
.
Fig
u
r
e
7
.
Fo
u
n
d
atio
n
p
o
p
u
lar
w
eb
s
i
te
5.
CO
NCLU
SI
O
N
Usi
n
g
a
f
r
o
n
t
-
e
n
d
f
r
a
m
e
w
o
r
k
is
g
r
ea
t
f
o
r
p
eo
p
le
w
h
o
w
a
n
t
to
cr
ea
te
c
o
n
ten
t
q
u
ic
k
l
y
,
o
r
at
least
n
o
t
d
o
in
g
it
f
r
o
m
s
cr
atc
h
.
W
ith
o
u
t
a
d
o
u
b
t,
th
e
u
s
e
o
f
a
f
r
o
n
t
-
e
n
d
f
r
a
m
e
w
o
r
k
f
ac
ilit
at
es
th
e
w
o
r
k
o
f
th
e
d
ev
elo
p
er
.
Ma
n
y
w
eb
s
ites
u
s
e
B
o
o
ts
tr
ap
an
d
Fo
u
n
d
ati
o
n
b
ec
au
s
e
th
e
y
ca
n
b
o
th
m
ee
t
t
h
e
n
ee
d
s
o
f
d
ev
elo
p
er
s
,
an
d
to
ch
o
o
s
e
th
e
r
ig
h
t
f
r
a
m
e
w
o
r
k
.
I
n
t
h
is
co
n
te
x
t
th
is
p
ap
er
p
r
o
v
id
ed
a
d
etailed
an
al
y
s
is
o
f
t
h
es
e
t
w
o
f
r
a
m
e
w
o
r
k
s
,
to
en
h
a
n
ce
th
e
p
r
o
ce
s
s
o
f
f
r
a
m
e
w
o
r
k
s
s
e
lectio
n
.
T
h
e
r
esu
lts
o
f
th
i
s
co
n
tr
ib
u
tio
n
p
r
o
v
id
e
g
u
id
eli
n
e
s
to
f
r
o
n
t
-
e
n
d
d
ev
el
o
p
er
s
to
s
elec
t
th
e
ap
p
r
o
p
r
iate
f
r
a
m
e
w
o
r
k
b
ased
o
n
t
h
e
f
r
am
e
w
o
r
k
p
o
p
u
lar
it
y
,
t
h
e
ac
ti
v
e
d
ev
elo
p
m
e
n
t
o
f
t
h
e
f
r
a
m
e
w
o
r
k
,
f
r
a
m
e
w
o
r
k
m
at
u
r
it
y
,
f
r
a
m
e
w
o
r
k
d
o
cu
m
e
n
tat
i
o
n
,
an
d
f
i
n
all
y
t
h
e
lev
el
o
f
s
p
ec
i
f
icit
y
o
f
t
h
e
f
r
a
m
e
w
o
r
k
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
1
,
Feb
r
u
ar
y
2
0
1
9
:
7
1
3
-
722
722
RE
F
E
R
E
NC
E
S
[1
]
D.
R.
L
a
k
sh
m
i
a
n
d
S
.
S
.
M
a
ll
ik
a
,
“
A
Re
v
ie
w
o
n
W
e
b
A
p
p
li
c
a
ti
o
n
T
e
stin
g
a
n
d
it
s
Cu
rre
n
t
Re
se
a
rc
h
Dire
c
ti
o
n
s,”
In
ter
n
a
t
io
n
a
l
J
o
u
rn
a
l
o
f
E
lec
trica
l
a
n
d
C
o
mp
u
ter
En
g
in
e
e
rin
g
(
IJ
ECE
)
,
v
o
l.
7
,
n
o
.
4
,
p
.
2
1
3
2
,
2
0
1
7
.
[2
]
W
.
D.
Cletu
s,
A
.
K
a
k
a
n
d
a
r,
a
n
d
C.
N.
P
a
u
l
,
“
Re
sp
o
n
siv
e
W
e
b
D
e
sig
n
F
ra
m
e
w
o
rk
s :
A
R
e
v
ie
w
,
”
In
t.
J
.
S
c
i.
Res
.
Co
mp
u
t
.
S
c
i
.
En
g
.
In
f.
T
e
c
h
n
o
l.
,
v
o
l.
4
,
n
o
.
5
,
p
p
.
1
3
2
–
1
3
6
,
2
0
1
7
.
[3
]
W
.
Co
m
p
u
ter,
“
Re
sp
o
n
siv
e
W
e
b
De
sig
n
W
it
h
Bo
o
tstrap
,
”
v
o
l.
5
,
n
o
.
4
,
p
.
2
7
4
,
2
0
1
6
.
[4
]
N.
Ja
in
,
“
Re
v
iew
o
f
Di
ff
e
re
n
t
Re
sp
o
n
siv
e
CS
S
F
r
o
n
t
-
En
d
F
ra
m
e
wo
rk
s,”
J
.
Glo
b
.
Res
.
Co
m
p
u
t.
S
c
i
.
,
v
o
l.
5
,
n
o
.
1
1
,
p
p
.
5
–
1
0
,
2
0
1
4
.
[5
]
“
In
tro
d
u
c
ti
o
n
a
u
x
f
ra
m
e
w
o
rk
s
f
ro
n
t
-
e
n
d
(B
o
o
tstrap
,
F
o
u
n
d
a
ti
o
n
)
–
a
lt
icre
a
ti
o
n
.
”
[
O
n
li
n
e
]
.
A
v
a
il
a
b
le:
h
tt
p
s:/
/www
.
a
lt
icre
a
ti
o
n
.
c
o
m
/b
o
o
tstrap
-
f
o
u
n
d
a
ti
o
n
-
f
ra
m
e
w
o
r
k
s
-
f
ro
n
t
-
e
n
d
/.
[6
]
S
.
S
u
b
ra
m
a
n
ia
m
,
S
.
-
C.
Ha
w
,
a
n
d
P
.
K.
Ho
o
n
g
,
“
Brid
g
in
g
X
M
L
a
n
d
Re
latio
n
a
l
Da
tab
a
se
s:
A
n
E
ffe
c
ti
v
e
M
a
p
p
in
g
S
c
h
e
m
e
b
a
se
d
o
n
P
e
rsiste
n
t
L
a
b
e
li
n
g
,
”
In
ter
n
a
ti
o
n
a
l
J
o
u
r
n
a
l
o
f
El
e
c
trica
l
a
n
d
C
o
mp
u
ter
En
g
i
n
e
e
rin
g
(
IJ
ECE
)
,
v
o
l.
2
,
n
o
.
2
,
p
p
.
2
3
9
–
2
4
6
,
2
0
1
1
.
[7
]
S
.
K.
P
a
tel,
“
Re
sp
o
n
siv
e
W
e
b
De
sig
n
w
it
h
A
n
g
u
larJ
S
,
”
p
.
1
4
2
,
2
0
1
4
.
[8
]
N.
Ed
a
n
,
A
.
A
l
-
sh
e
rb
a
z
,
a
n
d
S
.
T
u
rn
e
r,
“
De
sig
n
a
n
d
I
m
p
le
m
e
n
t
a
H
y
b
rid
Web
RT
C
S
ig
n
a
ll
in
g
M
e
c
h
a
n
ism
f
o
r
Un
id
irec
ti
o
n
a
l
&
Bi
-
d
irec
ti
o
n
a
l
Vid
e
o
C
o
n
f
e
re
n
c
in
g
,
”
v
o
l.
8
,
n
o
.
1
,
p
p
.
3
9
0
–
3
9
9
,
2
0
1
8
.
[9
]
“
L
e
s
m
e
il
leu
rs
f
ra
m
e
w
o
rk
s
CS
S
p
o
u
r
c
ré
e
r
u
n
site
w
e
b
p
ro
f
e
ss
io
n
n
e
l.
|
Ou
ti
ls
-
w
e
b
.
f
r.
”
[
On
li
n
e
].
A
v
a
il
a
b
le:
h
tt
p
:
//
o
u
ti
ls
-
w
e
b
.
f
r/l
e
s
-
m
e
il
leu
rs
-
fra
m
e
w
o
rk
s
-
c
ss
-
pour
-
c
re
e
r
-
un
-
site
-
w
e
b
-
p
ro
f
e
s
sio
n
n
e
l/
.
[1
0
]
“
COMP
A
RA
IS
ON
EN
T
RE
L
ES
F
RA
M
EW
ORK
F
RON
T
-
END
BOO
T
S
T
R
A
P
ET
F
ON
DA
T
IO
N
|
S
UP
INFO,
Éco
le S
u
p
é
rieu
re
d
’I
n
f
o
rm
a
ti
q
u
e
.
”
[
On
l
in
e
]
.
A
v
a
il
a
b
le:
h
tt
p
s:
//
ww
w
.
su
p
in
f
o
.
c
o
m
/article
s/sin
g
le/4
9
0
3
-
c
o
m
p
a
ra
iso
n
-
f
ra
m
e
w
o
rk
-
f
ro
n
t
-
e
n
d
-
b
o
o
tstrap
-
f
o
n
d
a
t
io
n
.
[1
1
]
“
T
u
to
riel
Bo
o
tstrap
:
les
p
re
m
ier
s
p
a
s
-
1
&
a
m
p
;1
.
”
[
On
li
n
e
]
.
A
v
a
il
a
b
le:
h
tt
p
s:/
/www
.
1
a
n
d
1
.
f
r/d
ig
it
a
lg
u
id
e
/sit
e
s
-
in
tern
e
t/
d
e
v
e
lo
p
p
e
m
e
n
t
-
we
b
/t
u
to
r
iel
-
b
o
o
tstrap
-
les
-
p
re
m
iers
-
p
a
s/.
[1
2
]
“
Re
sp
o
n
siv
e
CS
S
F
ra
m
e
w
o
rk
Co
m
p
a
riso
n
|
V
e
r
m
il
io
n
De
sig
n
+
Dig
it
a
l.
”
[
O
n
li
n
e
]
.
A
v
a
il
a
b
le:
h
tt
p
s:/
/www
.
v
e
r
m
il
io
n
.
c
o
m
/res
p
o
n
siv
e
-
c
o
m
p
a
riso
n
/.
Evaluation Warning : The document was created with Spire.PDF for Python.