介绍以下是从网上搜集的10个非常实用重要的CSS代码片段CSSreset这是CSS浏览器重置的基本常用CSS代码片段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;边框:0;字体大小:100%;字体:继承;垂直对齐:基线;轮廓:无;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;}html{height:101%;}body{font-size:62.5%;line-height:1;font-family:Arial,Tahoma,sans-serif;}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block;}ol,ul{list-style:none;}blockquote,q{quotes:none;}blockquote:before,blockquote:after,q:before,q:after{content:'';content:none;}strong{font-weight:bold;}table{border-collapse:collapse;border-spacing:0;}img{border:0;max-width:100%;}p{font-size:1.2em;line-height:1.0em;color:#333;}跨浏览器透明度设置.transparent{-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";/*IE8*/filter:alpha(opacity=50);/*IE5-7*/-moz-opacity:0.5;/*Netscape*/-khtml-opacity:0.5;/*Safari1.x*/opacity:0.5;/*Goodbrowsers*/}??常规媒体查询/*智能手机(portraitandlandscape)------------*/@mediaonlyscreenand(min-device-width:320px)and(max-device-width:480px){}/*智能手机（横向）-----------*/@mediaonlyscreenand(min-width:321px){}/*智能手机（纵向）------------*/@mediaonlyscreenand(max-width:320px){}/*iPads（纵向和横向）------------*/@mediaonlyscreenand（最小设备宽度：768px）和（最大设备宽度：1024px）{}/*iPad（横向）-----------*/@mediaonlyscreenand(min-device-width:768px)and(max-device-width:1024px)and(orientation:landscape){}/*iPads(portrait)------------*/@mediaonlyscreenand（最小设备宽度：768px)and(max-device-width:1024px)and(orientation:portrait){}/*Desktopsandlaptops------------*/@mediaonlyscreenand(min-width:1224px){}/*Largescreens----------*/@mediaonlyscreenand(min-width:1824px){}/*iPhone4------------*/@mediaonlyscreenand(-webkit-min-device-pixel-ratio:1.5),onlyscreenand(min-device-pixel-ratio:1.5){}自定义选定文本::selection{background:#51a351;}::-moz-selection{background:#51a351;}::-webkit-selection{background:#51a351;}带CSS3html的全屏背景{background:url('images/bg.jpg')no-repeatcentercenterfixed;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;}强制垂直滚动条html{height:101%}文本首字母p:first-letter{display:block;margin:4px004px;float:left;color:#ff3366;font-size:5.3em;font-family:Georgia,TimesNewRoman,serif;}内部和外部阴影#mydiv{-moz-box-shadow:inset2px04px#000;-webkit-box-shadow:inset2px04px#000;框阴影：inset2px04px#000;}#mydiv{-webkit-box-shadow:02px2px-2pxrgba(0,0,0,0.52);-moz-box-shadow:02px2px-2pxrgba(0,0,0,0.52);box-shadow:02px2px-2pxrgba(0,0,0,0.52);}语言气泡.speech-bubble{position:relative;background:#00aabb;border-radius:.4em;}.speech-bubble:after{content:'';position:absolute;bottom:0;left:50%;width:0;height:0;border:30pxsolidtransparent;border-top-color:#00aabb;border-bottom:0;border-left:0;margin-left:-15px;margin-bottom:-30px;}自定义输入格式input[type=text],textarea{-webkit-transition:all0.30sease-in-out;-moz-transition:all0.30sease-in-out;-ms-transition:all0.30sease-in-out;-o-transition:all0.30sease-in-out;outline:none;padding:3px0px3px3px;margin:5px1px3px0px;border:1pxsolid#ddd;}input[type=text]:focus,textarea:focus{box-shadow:005pxrgba(81,203,238,1);padding:3px0px3px3px;margin:5px1px3px0px;border:1pxsolidrgba(81,203,238,1);}
