HTML and CSS Reference
In-Depth Information
Houston, we have a problem…
That red on the page can't be good. It doesn't look
like the page validated. We'd better take a look…
We fa
iled the
valida
tion.
It loo
ks like
there
is one
error
.
T
his must
be
t
he error.
T
he W
3C is
con
stan
tly
re
visi
ng th
e va
lidat
or.
B
ecaus
e the
W3C
frequ
ently
re
vises
the v
alidat
or, yo
u may
n
ot see
exac
tly the
sam
e erro
r
me
ssage
s. No
worr
ies, ju
st kee
p foll
owing
alo
ng be
cause
all th
e stu
ff in th
e nex
t few
pa
ges is
impo
rtant,
even
if you
don't
see
the
error
abov
e.
