CSS是大家在web开发中常用的语言,但是有时候使用非常不爽。某一个CSS可能应用在不同的浏览器中行为不全一样。所以大家得花很多时间来进行调试。
幸运的是,网络上大家可以找到很多不错的CSS代码片断,能够有效地帮助大家解决一般性的或者设计问题。这里我们收集了30个CSS的代码片断帮助大家调试。希望大家喜欢!
代码
1. Chris Poteet’s CSS浏览器重置代码
这个代码能够有效地帮助大家解决跨浏览器问题。虽然不支持IE6,但是对于这种美国占有率低于1%的浏览器,大家大可以放弃。
- /*
- Reset Default Browser Styles
- – Place first in the listing of external style sheets for cascading.
- – Be sure to explicitly set margin/padding styles.
- – Styles are not reset that have to do with display (block, inline) are not reset.
- By: Chris Poteet & various influences
- */
- * {
- vertical-align: baseline;
- font-family: inherit;
- font-style: inherit;
- font-size: 100%;
- border: none;
- padding: 0;
- margin: 0;
- }
- body {
- padding: 5px;
- }
- h1, h2, h3, h4, h5, h6, p, pre, blockquote, form, ul, ol, dl {
- margin: 20px 0;
- }
- li, dd, blockquote {
- margin-left: 40px;
- }
- dt {
- font-weight: bold;
- }
- table {
- border-collapse: collapse;
- border-spacing: 0;
- }
2. Eric Meyer’s CSS Reset
Eric的CSS代码片断可能是最受欢迎的代码之一。甚至支持Blueprint CSS Framework.
- /* http://meyerweb.com/eric/tools/css/reset/
- v2.0 | 20110126
- License: none (public domain)
- */
- html, body, div, span, applet, object, iframe,
- h1, h2, h3, h4, h5, h6, p, blockquote, pre,
- a, abbr, acronym, address, big, cite, code,
- del, dfn, em, img, ins, kbd, q, s, samp,
- small, strike, strong, sub, sup, tt, var,
- b, u, i, center,
- dl, dt, dd, ol, ul, li,
- fieldset, form, label, legend,
- table, caption, tbody, tfoot, thead, tr, th, td,
- article, aside, canvas, details, embed,
- figure, figcaption, footer, header, hgroup,
- menu, nav, output, ruby, section, summary,
- time, mark, audio, video {
- margin: 0;
- padding: 0;
- border: 0;
- font-size: 100%;
- font: inherit;
- vertical-align: baseline;
- }
- /* HTML5 display-role reset for older browsers */
- article, aside, details, figcaption, figure,
- footer, header, hgroup, menu, nav, section {
- display: block;
- }
- body {
- line-height: 1;
- }
- ol, ul {
- list-style: none;
- }
- blockquote, q {
- quotes: none;
- }
- blockquote:before, blockquote:after,
- q:before, q:after {
- content: ”;
- content: none;
- }
- table {
- border-collapse: collapse;
- border-spacing: 0;
- }
3. How to Create Multiple Borders in CSS3
非常酷的方式创建box阴影,允许你创建多个边框
- box-shadow:
- 0 0 0 2px #000,
- 0 0 0 3px #999,
- 0 0 0 9px #fa0,
- 0 0 0 10px #666,
- 0 0 0 16px #fd0,
- 0 0 0 18px #000;
4. Tucked Corners
CSS代码允许你创建类似非常酷的Gravatar首页效果
- div.tucked-corners {
- background: #f6f6f6;
- height: 380px;
- margin: 50px auto;
- padding: 10px;
- position: relative;
- width: 580px;
- -webkit-box-shadow: 0 1px 7px hsla(0,0%,0%,.2);
- -moz-box-shadow: 0 1px 7px hsla(0,0%,0%,.2);
- box-shadow: 0 1px 7px hsla(0,0%,0%,.2);
- }
- span.tucked-corners {
- background: #c4453c;
- display: block;
- height: 380px;
- position: relative;
- width: 580px;
- -webkit-box-shadow: inset 0 0 10px hsla(0,0%,0%,.25);
- -moz-box-shadow: inset 0 0 10px hsla(0,0%,0%,.25);
- box-shadow: inset 0 0 10px hsla(0,0%,0%,.25);
- }
- /* Top Corner Effect */
- .top-corners:after,
- .top-corners:before {
- background: #e6e6e6;
- content: ”;
- height: 50px;
- position: absolute;
- top: -25px;
- width: 100px;
- z-index: 10;
- -webkit-box-shadow: 0 6px 9px -8px hsla(0,0%,0%,.5);
- -moz-box-shadow: 0 6px 9px -8px hsla(0,0%,0%,.5);
- box-shadow: 0 6px 9px -8px hsla(0,0%,0%,.5);
- }
- .top-corners:after {
- left: -50px;
- -webkit-transform: rotate(-45deg);
- -moz-transform: rotate(-45deg);
- -ms-transform: rotate(-45deg);
- -o-transform: rotate(-45deg);
- transform: rotate(-45deg);
- }
- .top-corners:before {
- right: -50px;
- -webkit-transform: rotate(45deg);
- -moz-transform: rotate(45deg);
- -ms-transform: rotate(45deg);
- -o-transform: rotate(45deg);
- transform: rotate(45deg);
- }
- /* Bottom Corner Effect */
- .bottom-corners:after,
- .bottom-corners:before {
- background: #e6e6e6;
- content: ”;
- height: 50px;
- position: absolute;
- bottom: -25px;
- width: 100px;
- -webkit-box-shadow: 0 6px 9px -8px hsla(0,0%,0%,.5);
- -moz-box-shadow: 0 6px 9px -8px hsla(0,0%,0%,.5);
- box-shadow: 0 6px 9px -8px hsla(0,0%,0%,.5);
- }
- .bottom-corners:after {
- left: -50px;
- -webkit-transform: rotate(-135deg);
- -moz-transform: rotate(-135deg);
- -ms-transform: rotate(-135deg);
- -o-transform: rotate(-135deg);
- transform: rotate(-135deg);
- }
- .bottom-corners:before {
- right: -50px;
- -webkit-transform: rotate(135deg);
- -moz-transform: rotate(135deg);
- -ms-transform: rotate(135deg);
- -o-transform: rotate(135deg);
- transform: rotate(135deg);
- }
5. iPad-Specific CSS
修改一般的ipad屏幕布局
- @media only screen and (device-width: 768px) {
- /* For general iPad layouts */
- }
- @media only screen and (min-device-width: 481px) and (max-device-width: 1024px) and (orientation:portrait) {
- /* For portrait layouts only */
- }
- @media only screen and (min-device-width: 481px) and (max-device-width: 1024px) and (orientation:landscape) {
- /* For landscape layouts only */
- }
6. Style links depending on file format
修改外部链接,email链接,pdf链接的样式
- /* external links */
- a[href^=”http://”]{
- padding-right: 20px;
- background: url(external.gif) no-repeat center right;
- }
- /* emails */
- a[href^=”mailto:”]{
- padding-right: 20px;
- background: url(email.png) no-repeat center right;
- }
- /* pdfs */
- a[href$=”.pdf”]{
- padding-right: 20px;
- background: url(pdf.png) no-repeat center right;
7. Drop Caps
非常棒的跨浏览器代码帮助你使得每段文字的第一个字母更加
- .firstcharacter { float: left; color: #903; font-size: 75px; line-height: 60px; padding-top: 4px; padding-right: 8px; padding-left: 3px; font-family: Georgia; }
明显CSS3也可以,但是不支持IE9
- p:first-child:first-letter { float: left; color: #903; font-size: 75px; line-height: 60px; padding-top: 4px; padding-right: 8px; padding-left: 3px; font-family: Georgia; }
8. CSS Sticky Footer
CSS实现的置顶sticky页脚效果,支持所有的主流浏览器包括chrome和IE8
CSS:
- /*
- Sticky Footer Solution
- by Steve Hatcher
- http://stever.ca
- http://www.cssstickyfooter.com
- */
- * {margin:0;padding:0;}
- /* must declare 0 margins on everything, also for main layout components use padding, not
- vertical margins (top and bottom) to add spacing, else those margins get added to total height
- and your footer gets pushed down a bit more, creating vertical scroll bars in the browser */
- html, body {height: 100%;}
- #wrap {min-height: 100%;}
- #main {overflow:auto;
- padding-bottom: 150px;} /* must be same height as the footer */
- #footer {position: relative;
- margin-top: -150px; /* negative value of footer height */
- height: 150px;
- clear:both;}
- /*Opera Fix*/
- body:before {/* thanks to Maleika (Kohoutec)*/
- content:””;
- height:100%;
- float:left;
- width:0;
- margin-top:-32767px;/* thank you Erik J – negate effect of float*/
- }
- /* IMPORTANT
- You also need to include this conditional style in the of your HTML file to feed this style to IE 6 and lower and 8 and higher.
- <!–[if !IE 7]>
- <style type=”text/css”>
- #wrap {display:table;height:100%}
- </style>
- < ![endif]–>
- */
HTML:
- <div id=”wrap”>
- <div id=”main”>
- </div>
- </div>
- <div id=”footer”>
- </div>
9. Image Replacement Technique
实用的图片替换文字页面元素效果。
- a.replacement
- {
- background: url(dotted-border.png) no-repeat;
- height: 44px;
- width: 316px;
- display: block;
- text-indent: -9999px;
- overflow: hidden; /*Add this line to the image replacement method*/
- }
10. Set body font-size to 62.5% for Easier em Conversion
如果你想拥有更加灵活的布局,你应该使用em而不是pixel或者points。通过设置你的字体62.5%,你可以很容易的通过设置em为pixel的1/10来设置文字。
- body {
- font-size: 62.5%; /* font-size 1em = 10px */
- }
- p {
- font-size: 1.2em; /* 1.2em = 12px */
- }
11. Vertically Align Text
如果你设置line-height和父元素高度相同,则很容易让文字垂直居中
- div { width:100px; height:100px; }
- div p { line-height:100px; }
12. How to Create 3D Text With CSS3
使用text-shadow属性,你可以只使用CSS3创建3D文字
- p.threeD
- {
- text-shadow:
- -1px 1px 0 #ddd,
- -2px 2px 0 #c8c8c8,
- -3px 3px 0 #ccc,
- -4px 4px 0 #b8b8b8,
- -4px 4px 0 #bbb,
- 0px 1px 1px rgba(0,0,0,.4),
- 0px 2px 2px rgba(0,0,0,.3),
- -1px 3px 3px rgba(0,0,0,.2),
- -1px 5px 5px rgba(0,0,0,.1),
- -2px 8px 8px rgba(0,0,0,.1),
- -2px 13px 13px rgba(0,0,0,.1)
- ;
- }
13. Wrapping Long URLs and Text Content with CSS
这段代码将会帮助你使得一行文字不至于太长,会自动根据内容宽度来折行
- pre {
- white-space: pre; /* CSS 2.0 */
- white-space: pre-wrap; /* CSS 2.1 */
- white-space: pre-line; /* CSS 3.0 */
- white-space: -pre-wrap; /* Opera 4-6 */
- white-space: -o-pre-wrap; /* Opera 7 */
- white-space: -moz-pre-wrap; /* Mozilla */
- white-space: -hp-pre-wrap; /* HP Printers */
- word-wrap: break-word; /* IE 5+ */
- }
14. Fancy Ampersand
使得你的”&”符号更加漂亮
- .amp {
- font-family: Baskerville, ‘Goudy Old Style’, Palatino, ‘Book Antiqua’, serif;
- font-style: italic;
- font-weight: normal;
- }
15. Pull Quotes for Improved Reading
使得你的引用更加明显,将引用浮动到左边或者右边,并且包围内容
- .pullquote {
- width: 300px;
- float: right;
- margin: 5px;
- font-family: Georgia, “Times New Roman”, Times, serif;
- font: italic bold #ff0000 ; }
16. Rounded Borders Around Images
使用CSS3可以很容易的生成图片圆角
- img {
- -webkit-border-radius: 25px;
- -moz-border-radius: 25px;
- border-radius: 25px;
- }
17. Image Preloader
图片加载中先加载一个小图片,这样提示用户预加载图片
- img
- {
- background: url(img/preloader.gif) no-repeat 50% 50%;
- }
18. CSS3 Opacity
使用opacity属性,帮助你透明看到元素,你可以创建一个分层的纹理背景
- div.L1 { background:#036; opacity:0.2; height:20px; }
- div.L2 { background:#036; opacity:0.4; height:20px; }
- div.L3 { background:#036; opacity:0.6; height:20px; }
- div.L4 { background:#036; opacity:0.8; height:20px; }
- div.L5 { background:#036; opacity:1.0; height:20px; }
19. Highlight links that open in a new window
这段代码允许你通过显示不同的样式清楚地分辨新窗口/标签页打开的link。
- a[target=”_blank”]:before,
- a[target=”new”]:before {
- margin:0 5px 0 0;
- padding:1px;
- outline:1px solid #333;
- color:#333;
- background:#ff9;
- font:12px “Zapf Dingbats”;
- content: “\279C”;
- }
20. The New Bulletproof @Font-Face Syntax
跨浏览器的CSS代码片断,帮助你定义font face
- @font-face {
- font-family: ‘MyFontFamily’;
- src: url(‘myfont-webfont.eot?#iefix’) format(’embedded-opentype’),
- url(‘myfont-webfont.woff’) format(‘woff’),
- url(‘myfont-webfont.ttf’) format(‘truetype’),
- url(‘myfont-webfont.svg#svgFontName’) format(‘svg’);
- }
21. Flip an Image
翻转图片的CSS代码片断。特别适合你翻转图标
- img {
- -moz-transform: scaleX(-1);
- -o-transform: scaleX(-1);
- -webkit-transform: scaleX(-1);
- transform: scaleX(-1);
- filter: FlipH;
- -ms-filter: “FlipH”;
- }
22. Email Link With An Image
快速的方法自动添加一个电子邮件图片到你的email链接
- a[href^=”mailto:”] {
- background: url(images/email.png) no-repeat right top;
- padding-right:10px;
- }
23. Beautiful Blockquotes
美化你的引用
- blockquote {
- background:#f9f9f9;
- border-left:10px solid #ccc;
- margin:1.5em 10px;
- padding:.5em 10px;
- quotes:”\201C””\201D””\2018″”\2019″;
- }
- blockquote:before {
- color:#ccc;
- content:open-quote;
- font-size:4em;
- line-height:.1em;
- margin-right:.25em;
- vertical-align:-.4em;
- }
- blockquote p {
- display:inline;
- }
24. Browser CSS hacks
大量的CSS hack帮助你让你的网站在所有浏览器下显示一致
- /***** Selector Hacks ******/
- /* IE6 and below */
- * html #uno { color: red }
- /* IE7 */
- *:first-child+html #dos { color: red }
- /* IE7, FF, Saf, Opera */
- html>body #tres { color: red }
- /* IE8, FF, Saf, Opera (Everything but IE 6,7) */
- html>/**/body #cuatro { color: red }
- /* Opera 9.27 and below, safari 2 */
- html:first-child #cinco { color: red }
- /* Safari 2-3 */
- html[xmlns*=””] body:last-child #seis { color: red }
- /* safari 3+, chrome 1+, opera9+, ff 3.5+ */
- body:nth-of-type(1) #siete { color: red }
- /* safari 3+, chrome 1+, opera9+, ff 3.5+ */
- body:first-of-type #ocho { color: red }
- /* saf3+, chrome1+ */
- @media screen and (-webkit-min-device-pixel-ratio:0) {
- #diez { color: red }
- }
- /* iPhone / mobile webkit */
- @media screen and (max-device-width: 480px) {
- #veintiseis { color: red }
- }
- /* Safari 2 – 3.1 */
- html[xmlns*=””]:root #trece { color: red }
- /* Safari 2 – 3.1, Opera 9.25 */
- *|html[xmlns*=””] #catorce { color: red }
- /* Everything but IE6-8 */
- :root *> #quince { color: red }
- /* IE7 */
- *+html #dieciocho { color: red }
- /* Firefox only. 1+ */
- #veinticuatro, x:-moz-any-link { color: red }
- /* Firefox 3.0+ */
- #veinticinco, x:-moz-any-link, x:default { color: red }
- /* FF 3.5+ */
- body:not(:-moz-handler-blocked) #cuarenta { color: red; }
- /***** Attribute Hacks ******/
- /* IE6 */
- #once { _color: blue }
- /* IE6, IE7 */
- #doce { *color: blue; /* or #color: blue */ }
- /* Everything but IE6 */
- #diecisiete { color/**/: blue }
- /* IE6, IE7, IE8 */
- #diecinueve { color: blue\9; }
- /* IE7, IE8 */
- #veinte { color/*\**/: blue\9; }
- /* IE6, IE7 — acts as an !important */
- #veintesiete { color: blue !ie; } /* string after ! can be anything */
- /* IE8, IE9 */
- #anotherone {color: blue\0/;} /* must go at the END of all rules */
25. How To Change The Default Text Selection Color on your Blog
修改高亮的文字颜色
- ::selection {
- background: #ffb7b7; /* Safari */
- color: #ffffff;
- }
- ::-moz-selection {
- background: #ffb7b7; /* Firefox */
- color: #ffffff;
- }
26. Clearfix
- .clearfix:after {
- visibility: hidden;
- display: block;
- font-size: 0;
- content: ” “;
- clear: both;
- height: 0;
- }
- .clearfix { display: inline-block; }
- /* start commented backslash hack \*/
- * html .clearfix { height: 1%; }
- .clearfix { display: block; }
- /* close commented backslash hack */
27. Hide Logo Text With Text Indent
使得你的logo SEO友好。保证logo文字不显示
- h1 {
- text-indent:-9999px;
- margin:0 auto;
- width:400px;
- height:100px;
- background:transparent url(“images/logo.jpg”) no-repeat scroll;
- }
28. Reset all Text Colors and Background Colors
重置所有的背景和文字颜色。
- * {
- color: black !important;
- background-color: white !important;
- background-image: none !important;
- }
29. Multiple Background Images
使用多背景图片
- #multiple-images {
- background: url(image_1.png) top left no-repeat,
- url(image_2.png) bottom left no-repeat,
- url(image_3.png) bottom right no-repeat;
- }
30. Linear Gradient
允许你为背景创建一个线状渐变效果,不支持一些老浏览器
- background: -webkit-gradient(linear, left top, left bottom, from(#74b8d7), to(#437fbc));
- background: -moz-linear-gradient(top, #74b8d7, #437fbc);
- filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=’#74b8d7′, endColorstr=’#437fbc’);