块元素(block element)
address
blockquote
center
dir
div
dl
fieldset
form
h1
h2
h3
h4
h5
h6
hr
isindex
menu
noframes
noscript
ol
p
pre
table
ul
内联元素(inline element)
a
abbr
acronym
b
bdo
big
br
cite
code
dfn
em
font
i
img
input
kbd
label
q
s
samp
select
small
span
strike
strong
sub
sup
textarea
tt
u
var
可变元素(可变元素为根据上下文语境决定该元素为块元素或者内联元素)
applet
button
del
iframe
ins
map
object
script