HTML4.0元素默认样式整理

点评：HTML4.0元素默认样式想必大家有所不知，本文为了以后使用方便为大家整理了一些，感兴趣的朋友可以参考下，希望对大家有所帮助

代码如下:

html, address, 

blockquote, 

body, dd, div, 

dl, dt, fieldset, form, 

frame, frameset, 

h1, h2, h3, h4, 

h5, h6, noframes, 

ol, p, ul, center, 

dir, hr, menu, pre { display: block; unicode-bidi: embed } 

li { display: list-item } 

head { display: none } 

table { display: table } 

tr { display: table-row } 

thead { display: table-header-group } 

tbody { display: table-row-group } 

tfoot { display: table-footer-group } 

col { display: table-column } 

colgroup { display: table-column-group } 

td, th { display: table-cell } 

caption { display: table-caption } 

th { font-weight: bolder; text-align: center } 

caption { text-align: center } 

body { margin: 8px } 

h1 { font-size: 2em; margin: .67em 0 } 

h2 { font-size: 1.5em; margin: .75em 0 } 

h3 { font-size: 1.17em; margin: .83em 0 } 

h4, p, 

blockquote, ul, 

fieldset, form, 

ol, dl, dir, 

menu { margin: 1.12em 0 } 

h5 { font-size: .83em; margin: 1.5em 0 } 

h6 { font-size: .75em; margin: 1.67em 0 } 

h1, h2, h3, h4, 

h5, h6, b, 

strong { font-weight: bolder } 

blockquote { margin-left: 40px; margin-right: 40px } 

i, cite, em, 

var, address { font-style: italic } 

pre, tt, code, 

kbd, samp { font-family: monospace } 

pre { white-space: pre } 

button, textarea, 

input, select { display: inline-block } 

big { font-size: 1.17em } 

small, sub, sup { font-size: .83em } 

sub { vertical-align: sub } 

sup { vertical-align: super } 

table { border-spacing: 2px; } 

thead, tbody, 

tfoot { vertical-align: middle } 

td, th, tr { vertical-align: inherit } 

s, strike, del { text-decoration: line-through } 

hr { border: 1px inset } 

ol, ul, dir, 

menu, dd { margin-left: 40px } 

ol { list-style-type: decimal } 

ol ul, ul ol, 

ul ul, ol ol { margin-top: 0; margin-bottom: 0 } 

u, ins { text-decoration: underline } 

br:before { content: "\A"; white-space: pre-line } 

center { text-align: center } 

:link, :visited { text-decoration: underline } 

:focus { outline: thin dotted invert } 

/* Begin bidirectionality settings (do not change) */ 

BDO[DIR="ltr"] { direction: ltr; unicode-bidi: bidi-override } 

BDO[DIR="rtl"] { direction: rtl; unicode-bidi: bidi-override } 

*[DIR="ltr"] { direction: ltr; unicode-bidi: embed } 

*[DIR="rtl"] { direction: rtl; unicode-bidi: embed } 

@media print { 

h1 { page-break-before: always } 

h1, h2, h3, 

h4, h5, h6 { page-break-after: avoid } 

ul, ol, dl { page-break-before: avoid } 

}