开发人员有用的CSS代码片段
在今天的文章中分享我收藏的 30 个CSS 代码段，无论您是经验丰富的 web 设计师还是新手，他们都是非常值得借鉴的；
Css Reset by Eric Meyer
1 html, body, div, span, applet, object, iframe, 2 h1, h2, h3, h4, h5, h6, p, blockquote, pre, 3 a, abbr, acronym, address, big, cite, code, 4 del, dfn, em, font, img, ins, kbd, q, s, samp, 5 small, strike, strong, sub, sup, tt, var, 6 b, u, i, center, 7 dl, dt, dd, ol, ul, li, 8 fieldset, form, label, legend, 9 table, caption, tbody, tfoot, thead, tr, th, td { 10 margin: 0; 11 padding: 0; 12 border: 0; 13 outline: 0; 14 font-size: 100%; 15 vertical-align: baseline; 16 background: transparent; 17 } 18 19 body { 20 line-height: 1; 21 } 22 23 ol, ul { 24 list-style: none; 25 } 26 27 blockquote, q { 28 quotes: none; 29 } 30 31 blockquote:before, blockquote:after, 32 q:before, q:after { 33 content: ''; 34 content: none; 35 } 36 37 /* remember to define focus styles! */ 38 :focus { 39 outline: 0; 40 } 41 42 /* remember to highlight inserts somehow! */ 43 ins { 44 text-decoration: none; 45 } 46 47 del { 48 text-decoration: line-through; 49 } 50 51 /* tables still need 'cellspacing="0"' in the markup */ 52 table { 53 border-collapse: collapse; 54 border-spacing: 0; 55 }
根据文件格式显示不同的链接样式
1 /* external links */ 2 a[href^="http://"]{ 3 padding-right: 20px; 4 background: url(external.gif) no-repeat center right; 5 } 6 7 /* emails */ 8 a[href^="mailto:"]{ 9 padding-right: 20px; 10 background: url(email.png) no-repeat center right; 11 } 12 13 /* pdfs */ 14 a[href$=".pdf"]{ 15 padding-right: 20px; 16 background: url(pdf.png) no-repeat center right; 17 }
在IE浏览器删除textarea的滚动条
1 textarea{ 2 overflow:auto; 3 }
浏览器特定的 hacks
1 /* IE 6 */ 2 * html .yourclass { } 3 4 /* IE 7 */ 5 *+html .yourclass{ } 6 7 /* IE 7 and modern browsers */ 8 html>body .yourclass { } 9 10 /* Modern browsers (not IE 7) */ 11 html>/**/body .yourclass { } 12 13 /* Opera 9.27 and below */ 14 html:first-child .yourclass { } 15 16 /* Safari */ 17 html[xmlns*=""] body:last-child .yourclass { } 18 19 /* Safari 3+, Chrome 1+, Opera 9+, Fx 3.5+ */ 20 body:nth-of-type(1) .yourclass { } 21 22 /* Safari 3+, Chrome 1+, Opera 9+, Fx 3.5+ */ 23 body:first-of-type .yourclass { } 24 25 /* Safari 3+, Chrome 1+ */ 26 @media screen and (-webkit-min-device-pixel-ratio:0) { 27 .yourclass { } 28 }
Clearfix
1 .clearfix:after { 2 visibility: hidden; 3 display: block; 4 font-size: 0; 5 content: " "; 6 clear: both; 7 height: 0; 8 } 9 10 .clearfix { display: inline-block; } 11 12 /* start commented backslash hack \*/ 13 * html .clearfix { height: 1%; } 14 .clearfix { display: block; } 15 /* close commented backslash hack */
固定宽度且居中
1 .wrapper { 2 width:960px; 3 margin:0 auto; 4 }
Rounded corners – border-radius
1 .round{ 2 -moz-border-radius: 10px; 3 -webkit-border-radius: 10px; 4 border-radius: 10px; /* future proofing */ 5 -khtml-border-radius: 10px; /* for old Konqueror browsers */ 6 }
伪元素向文本的第一个字母添加特殊样式
1 p:first-letter{ 2 display:block; 3 margin:5px 0 0 5px; 4 float:left; 5 color:#000; 6 font-size:60px; 7 font-family:Georgia; 8 }
使用 @fontface
1 @font-face { 2 font-family: 'MyFontFamily'; 3 src: url('myfont-webfont.eot?') format('eot'), 4 url('myfont-webfont.woff') format('woff'), 5 url('myfont-webfont.ttf') format('truetype'), 6 url('myfont-webfont.svg#svgFontName') format('svg'); 7 }
跨浏览器的inline-block
1 li { 2 width: 200px; 3 min-height: 250px; 4 border: 1px solid #000; 5 display: -moz-inline-stack; 6 display: inline-block; 7 vertical-align: top; 8 margin: 5px; 9 zoom: 1; 10 *display: inline; 11 _height: 250px; 12 }
Fixed Footer
1 #footer { 2 position:fixed; 3 left:0px; 4 bottom:0px; 5 height:30px; 6 width:100%; 7 background:#999; 8 } 9 10 /* IE 6 */ 11 * html #footer { 12 position:absolute; 13 top:expression((0-(footer.offsetHeight)+(document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight)+(ignoreMe = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop))+'px'); 14 }
更改内容区域的大小
1 #content { 2 width: 100%; 3 margin: 0; 4 float: none; 5 }
CSS3 Media Queries （这个不常用主要用于智能设备的判断显示不同的媒体）
1 /* Smartphones (portrait and landscape) ----------- */ 2 @media only screen 3 and (min-device-width : 320px) 4 and (max-device-width : 480px) { 5 /* Styles */ 6 } 7 8 /* Smartphones (landscape) ----------- */ 9 @media only screen 10 and (min-width : 321px) { 11 /* Styles */ 12 } 13 14 /* Smartphones (portrait) ----------- */ 15 @media only screen 16 and (max-width : 320px) { 17 /* Styles */ 18 } 19 20 /* iPads (portrait and landscape) ----------- */ 21 @media only screen 22 and (min-device-width : 768px) 23 and (max-device-width : 1024px) { 24 /* Styles */ 25 } 26 27 /* iPads (landscape) ----------- */ 28 @media only screen 29 and (min-device-width : 768px) 30 and (max-device-width : 1024px) 31 and (orientation : landscape) { 32 /* Styles */ 33 } 34 35 /* iPads (portrait) ----------- */ 36 @media only screen 37 and (min-device-width : 768px) 38 and (max-device-width : 1024px) 39 and (orientation : portrait) { 40 /* Styles */ 41 } 42 43 /* Desktops and laptops ----------- */ 44 @media only screen 45 and (min-width : 1224px) { 46 /* Styles */ 47 } 48 49 /* Large screens ----------- */ 50 @media only screen 51 and (min-width : 1824px) { 52 /* Styles */ 53 } 54 55 /* iPhone 4 ----------- */ 56 @media 57 only screen and (-webkit-min-device-pixel-ratio : 1.5), 58 only screen and (min-device-pixel-ratio : 1.5) { 59 /* Styles */ 60 }
多背景图片
1 #multiple-images { 2 background: url(image_1.png) top left no-repeat, 3 url(image_2.png) bottom left no-repeat, 4 url(image_3.png) bottom right no-repeat; 5 }
多列
1 #columns-3 { 2 text-align: justify; 3 -moz-column-count: 3; 4 -moz-column-gap: 12px; 5 -moz-column-rule: 1px solid #c4c8cc; 6 -webkit-column-count: 3; 7 -webkit-column-gap: 12px; 8 -webkit-column-rule: 1px solid #c4c8cc; 9 }
在IE的最小高度
1 .box { 2 min-height:500px; 3 height:auto !important; 4 height:500px; 5 }
突出显示文本样式
1 ::selection { 2 color: #000000; 3 background-color: #FF0000; 4 } 5 6 ::-moz-selection { 7 color: #000000; 8 background: #FF0000; 9 }
Box Shadow
1 box-shadow: 0px 3px 3px rgba(0,0,0,0.2); 2 -moz-box-shadow: 0px 3px 3px rgba(0,0,0,0.2); 3 -webkit-box-shadow: 0px 3px 3px rgba(0,0,0,0.2);
占位符文本样式
1 ::-webkit-input-placeholder { color: #ccc; font-style:italic } 2 :-moz-placeholder { color: #ccc; font-style:italic }
CSS3 3D文字效果
1 h1 { 2 text-shadow: 0 1px 0 #ccc, 3 0 2px 0 #c9c9c9, 4 0 3px 0 #bbb, 5 0 4px 0 #b9b9b9, 6 0 5px 0 #aaa, 7 0 6px 1px rgba(0,0,0,.1), 8 0 0 5px rgba(0,0,0,.1), 9 0 1px 3px rgba(0,0,0,.3), 10 0 3px 5px rgba(0,0,0,.2), 11 0 5px 10px rgba(0,0,0,.25), 12 0 10px 10px rgba(0,0,0,.2), 13 0 20px 20px rgba(0,0,0,.15); 14 }
WebKit的边界半径修正
1 -webkit-background-clip: padding-box;
XBrowser的border-radius（CSS3PIE）
1 .roundbox { 2 -moz-border-radius:8px; 3 -webkit-border-radius:8px; 4 -khtml-border-radius:8px; 5 border-radius:8px; 6 behavior: url(/PIE.htc); 7 }
更好的兼容IE浏览器的
1 <!--[if IE]> 2 <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script> 3 <![endif]-->
CSS3工具提示（这个很实用，看我网站的导航工具提示效果)
1 a { 2 color: #900; 3 text-decoration: none; 4 } 5 6 a:hover { 7 color: red; 8 position: relative; 9 } 10 11 a[title]:hover:after { 12 content: attr(title); 13 padding: 4px 8px; 14 color: #333; 15 position: absolute; 16 left: 0; 17 top: 100%; 18 white-space: nowrap; 19 z-index: 20px; 20 -moz-border-radius: 5px; 21 -webkit-border-radius: 5px; 22 border-radius: 5px; 23 -moz-box-shadow: 0px 0px 4px #222; 24 -webkit-box-shadow: 0px 0px 4px #222; 25 box-shadow: 0px 0px 4px #222; 26 background-image: -moz-linear-gradient(top, #eeeeee, #cccccc); 27 background-image: -webkit-gradient(linear,left top,left bottom,color-stop(0, #eeeeee),color-stop(1, #cccccc)); 28 }
CSS3背景大小
1 body { 2 background: #000 url(http://birdoflight.files.wordpress.com/2009/10/frida-kahlo-1.jpg) center center fixed no-repeat; 3 -moz-background-size: cover; 4 background-size: cover; 5 } 6 7 @media only all and (max-width: 1024px) and (max-height: 768px) { 8 body { 9 -moz-background-size: 1024px 768px; 10 background-size: 1024px 768px; 11 } 12 }
跨浏览器的CSS页面卷曲阴影
1 .page-curl { 2 position: relative; 3 background: #ffffff; 4 background: -moz-linear-gradient(top, #ffffff 0%, #e5e5e5 100%); 5 background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#ffffff), color-stop(100%,#e5e5e5)); 6 filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#e5e5e5',GradientType=0 ); 7 -webkit-box-shadow: 0px 0px 3px rgba(0, 0, 0, 0.3); 8 -moz-box-shadow: 0px 0px 3px rgba(0, 0, 0, 0.3); } 9 10 .page-curl:after { 11 z-index: -1; 12 position: absolute; 13 background: transparent; 14 width: 70%; 15 height: 55%; 16 content: ''; 17 right: 10px; 18 bottom: 10px; 19 -webkit-transform: skew(15deg) rotate(5deg); 20 -webkit-box-shadow: 8px 12px 10px rgba(0, 0, 0, 0.3); 21 -moz-transform: skew(15deg) rotate(5deg); 22 -moz-box-shadow: 8px 12px 10px rgba(0, 0, 0, 0.3); } 23 24 .page-curl:before { 25 z-index: -2; 26 position: absolute; 27 background: transparent; 28 width: 70%; 29 height: 55%; 30 content: ''; 31 left: 10px; 32 bottom: 10px; 33 -webkit-transform: skew(-15deg) rotate(-5deg); 34 -webkit-box-shadow: -8px 12px 10px rgba(0, 0, 0, 0.3); 35 -moz-transform: skew(-15deg) rotate(-5deg); 36 -moz-box-shadow: -8px 12px 10px rgba(0, 0, 0, 0.3); }
CSS3模糊文字
1 .blur { 2 color: transparent; 3 text-shadow: 0 0 5px rgba(0,0,0,0.5); 4 }
修复 IE6/7 margin/padding双倍 间距错误
1 ul li 2 { 3 float: right; 4 margin-right: 10px; 5 *display: inline; /*Target IE7 and bellow*/ 6 _display: inline; /*Target IE6 and bellow*/ 7 } 8 /* This example fixes the double right margin bug */
链接伪类的顺序
1 a:link {color: blue;} 2 a:visited {color: purple;} 3 a:hover {color: red;} 4 a:active {color: yellow;}
响应布局的HTML Meta标签
1 <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no"> 2 <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> 3 <meta name="HandheldFriendly" content="true">
