<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>CSS Hacks - !important</title>
<style type="text/css">
p{
background: green !important;
background: red;
}
</style>
</head>
<body>
<p>Test</p>
</body>
</html>
2009年6月20日星期六
css-hacks-important
2009年2月20日星期五
提取Google Project边栏的风格
效果可以看http://code.google.com/p/google-code-prettify/
原理是 利用3层的box边框大小
- 行内容一
- 行内容二
- 行内容三
示例代码：
<div style="background: #e5ecf9; margin-bottom: 0.6em;"> <div style="border-left: 4px solid #fff; border-right: 4px solid #fff; font-size: 0; margin: 0; padding: 0; height: 1px;"></div> <div style="border-left: 2px solid #fff; border-right: 2px solid #fff; font-size: 0; margin: 0; padding: 0; height: 1px;"></div> <div style="border-left: 1px solid #fff; border-right: 1px solid #fff; font-size: 0; margin: 0; padding: 0; height: 1px;"></div> <div style="margin: 0; padding: 0 13px 0 13px;"> <ul> <li>行内容一</li> <li>行内容二</li> <li>行内容三</li> </ul> </div> <div style="border-left: 1px solid #fff; border-right: 1px solid #fff; font-size: 0; margin: 0; padding: 0; height: 1px;"></div> <div style="border-left: 2px solid #fff; border-right: 2px solid #fff; font-size: 0; margin: 0; padding: 0; height: 1px;"></div> <div style="border-left: 4px solid #fff; border-right: 4px solid #fff; font-size: 0; margin: 0; padding: 0; height: 1px;"></div> </div>
分离CSS和HTML
CSS代码--
.pmeta_bubble_bg {
background: #e5ecf9;
margin-bottom: 0.6em;
width: 300px;
}
.box-inner {
margin: 0;
padding: 0 13px 0 13px;
}
.round1 {
border-left: 1px solid #fff;
border-right: 1px solid #fff;
}
.round2 {
border-left: 2px solid #fff;
border-right: 2px solid #fff;
}
.round4 {
border-left: 4px solid #fff;
border-right: 4px solid #fff;
}
.round1,
.round2,
.round4 {
font-size: 0;
margin: 0;
padding: 0;
height: 1px;
}
HTML代码--
<div class="pmeta_bubble_bg"> <div class="round4"></div> <div class="round2"></div> <div class="round1"></div> <div class="box-inner"> <ul> <li></li> <li></li> <li></li> </ul> </div> <div class="round1"></div> <div class="round2"></div> <div class="round4"></div> </div>
2008年7月18日星期五
Default style sheet for HTML 4
This appendix is informative, not normative.
This style sheet describes the typical formatting of all HTML 4 ([HTML4]) elements based on extensive research into current UA practice. Developers are encouraged to use it as a default style sheet in their implementations.
The full presentation of some HTML elements cannot be expressed in CSS 2.1, including replaced elements ("img", "object"), scripting elements ("script", "applet"), form control elements, and frame elements.
For other elements, the legacy presentation can be described in CSS but the solution removes the element. For example, the FONT element can be replaced by attaching CSS declarations to other elements (e.g., DIV). Likewise, legacy presentation of presentational attributes (e.g., the "border" attribute on TABLE) can be described in CSS, but the markup in the source document must be changed.
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 }
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 { 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" }
:before, :after { 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 }
}
原文链接：http://www.w3.org/TR/CSS21/sample.html
下面的是CSS2的，看起来和CSS2.1相比更全面一些
Appendix A. A sample style sheet for HTML 4.0
This appendix is informative, not normative.
This style sheet describes the typical formatting of all HTML 4.0 ([HTML40]) elements based on extensive research into current UA practice. Developers are encouraged to use it as a default style sheet in their implementations.
The full presentation of some HTML elements cannot be expressed in CSS2, including replaced elements (IMG, OBJECT), scripting elements (SCRIPT, APPLET), form control elements, and frame elements.
ADDRESS,
BLOCKQUOTE,
BODY, DD, DIV,
DL, DT,
FIELDSET, FORM,
FRAME, FRAMESET,
H1, H2, H3, H4,
H5, H6, IFRAME,
NOFRAMES,
OBJECT, OL, P,
UL, APPLET,
CENTER, DIR,
HR, MENU, PRE { display: block }
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 { padding: 8px; line-height: 1.33 }
H1 { font-size: 2em; margin: .67em 0 }
H2 { font-size: 1.5em; margin: .83em 0 }
H3 { font-size: 1.17em; margin: 1em 0 }
H4, P,
BLOCKQUOTE, UL,
FIELDSET, FORM,
OL, DL, DIR,
MENU { margin: 1.33em 0 }
H5 { font-size: .83em; line-height: 1.17em; margin: 1.67em 0 }
H6 { font-size: .67em; margin: 2.33em 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 }
BIG { font-size: 1.17em }
SMALL, SUB, SUP { font-size: .83em }
SUB { vertical-align: sub }
SUP { vertical-align: super }
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 }
CENTER { text-align: center }
BR:before { content: "\A" }
/* An example of style for HTML 4.0's ABBR/ACRONYM elements */
ABBR, ACRONYM { font-variant: small-caps; letter-spacing: 0.1em }
A[href] { 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 }
/* Elements that are block-level in HTML4 */
ADDRESS, BLOCKQUOTE, BODY, DD, DIV, DL, DT, FIELDSET,
FORM, FRAME, FRAMESET, H1, H2, H3, H4, H5, H6, IFRAME,
NOSCRIPT, NOFRAMES, OBJECT, OL, P, UL, APPLET, CENTER,
DIR, HR, MENU, PRE, LI, TABLE, TR, THEAD, TBODY, TFOOT,
COL, COLGROUP, TD, TH, CAPTION
{ unicode-bidi: embed }
/* End bidi settings */
@media print {
@page { margin: 10% }
H1, H2, H3,
H4, H5, H6 { page-break-after: avoid; page-break-inside: avoid }
BLOCKQUOTE,
PRE { page-break-inside: avoid }
UL, OL, DL { page-break-before: avoid }
}
@media speech {
H1, H2, H3,
H4, H5, H6 { voice-family: paul, male; stress: 20; richness: 90 }
H1 { pitch: x-low; pitch-range: 90 }
H2 { pitch: x-low; pitch-range: 80 }
H3 { pitch: low; pitch-range: 70 }
H4 { pitch: medium; pitch-range: 60 }
H5 { pitch: medium; pitch-range: 50 }
H6 { pitch: medium; pitch-range: 40 }
LI, DT, DD { pitch: medium; richness: 60 }
DT { stress: 80 }
PRE, CODE, TT { pitch: medium; pitch-range: 0; stress: 0; richness: 80 }
EM { pitch: medium; pitch-range: 60; stress: 60; richness: 50 }
STRONG { pitch: medium; pitch-range: 60; stress: 90; richness: 90 }
DFN { pitch: high; pitch-range: 60; stress: 60 }
S, STRIKE { richness: 0 }
I { pitch: medium; pitch-range: 60; stress: 60; richness: 50 }
B { pitch: medium; pitch-range: 60; stress: 90; richness: 90 }
U { richness: 0 }
A:link { voice-family: harry, male }
A:visited { voice-family: betty, female }
A:active { voice-family: betty, female; pitch-range: 80; pitch: x-high }
}
原文链接：http://www.w3.org/TR/CSS2/sample.html
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