﻿*{margin:0;padding:0;border:0}body{font-family:Verdana,Arial;font-size:12px}strong{font-family:'微软雅黑';font-size:14px;color:#000;font-weight:800}body#homefirst div#maincontent,div#maincontent h1,div#maincontent h2,div#sidebar div#ad h2{font-family:'微软雅黑'}pre,pre code,div#maincontent input,div#maincontent select,div#maincontent textarea{font-family:"Courier New",Courier,monospace}h2,h3,h4,h5,h6,em{font-weight:bold}p.note span,p.important span,p.tip span,p.inherited,p.inherited span,p.gototop,.html5_new_note span{font-weight:bold}body#homesecond div#navsecond li{font-weight:bold}.tiy{font-weight:normal}div#maincontent h1{font-size:26px;font-weight:400}div#maincontent h2,div#sidebar div#ad h2,body#homefirst div#maincontent h3{font-size:14px}div#navsecond h2,div#sidebar h2,div#maincontent h3,div#maincontent h4{font-size:12px}div#maincontent button,div#maincontent input,div#maincontent select,div#maincontent textarea{font-size:12px}body#homefirst div#maincontent div#w3 h2{font-size:20px}em{font-style:normal}pre code{color:#00d}.html5_new_note span{color:blue}p.gototop{text-align:right}div#maincontent button{margin-top:15px}html{min-width:966px;background:#f9f9f9;overflow:scroll;overflow-x:hidden}body{text-align:center;margin:0;padding:0;border:0;background:#f9f9f9 url(/ui/holder.gif) top center repeat-y}div#wrapper{margin:0 auto;padding:0;border:0;width:1129px;text-align:left;background:transparent url(/ui/wrapper.gif) top left repeat-y}div#navsecond{float:left;margin:0 0 0 6px;padding:0;border:0;width:180px;background:transparent}html>body div#navsecond{margin-left:12px}div#maincontent{float:left;margin:0;padding:0;border:0;width:740px;background:transparent}div#sidebar{float:left;margin:0;padding:0;border:0;width:180px;background:transparent}div#footer{clear:both;margin:0;padding:0;margin-left:12px;width:1100px;height:46px;background:#b6b6b6;border-top:10px solid #fff;border-bottom:10px solid #fff}div#footer p{margin:5px 10px 0 10px}div#header,div#header_index{margin:0 0 0 12px;padding:0;border:0;width:1100px;height:90px;background-color:#efefef}div#header a,div#header_index a,div#header_index h1{text-indent:-9999px;margin:0;padding:0;border:0;overflow:hidden}div#header a:link,div#header a:visited{display:block;width:372px;height:90px;background:transparent url(/ui/bg.gif) 0 -120px no-repeat;margin:0;padding:0;border:0}div#header a:hover{background:transparent url(/ui/bg.gif) 0 -210px no-repeat}div#header div#ad_head{float:right;width:728px;height:90px;background-color:#efefef}div#header_index a:link,div#header_index a:visited{display:block;width:1100px;height:90px;background:transparent url(/ui/head_index.gif) top left no-repeat;margin:0;padding:0;border:0}div#header_index a:hover{background:transparent url(/ui/head_index.gif) 0 -90px no-repeat}body#homefirst div#maincontent div{padding-top:0}body#homefirst div#maincontent div#w3{text-align:center}body#homefirst div#maincontent div#partner{width:307px;float:left}body#homefirst div#maincontent div#update{width:300px;float:left;margin:0}body#homefirst div#maincontent div#w3 h2{margin-top:20px}body#homefirst div#maincontent h3{margin-top:15px}body#homefirst div#maincontent div.idea{padding:0;min-height:118px}body#homefirst div#maincontent div.idea img{margin:0;float:left}div#navfirst{height:55px;width:1100px;margin:0 0 0 12px;padding:0;border:0;background:#fff}div#navfirst ul#menu{height:55px;width:1100px;background:transparent url(/ui/bg.gif) top left no-repeat;margin:0;padding:0;position:relative}div#navfirst ul#menu li{margin:0;padding:0;list-style:none;position:absolute;top:0}ul#menu li,ul#menu a{display:block;height:55px}div#navfirst ul#menu li a{text-indent:-9999px;overflow:hidden;text-decoration:none}#h{left:0;width:155px}#b{left:155px;width:157px}#s{left:312px;width:167px}#d{left:479px;width:158px}#x{left:637px;width:101px}#m{left:738px;width:185px}#w{left:923px;width:177px}#h a:hover{background:transparent url(/ui/bg.gif) 0 -55px no-repeat}#b a:hover{background:transparent url(/ui/bg.gif) -155px -55px no-repeat}#s a:hover{background:transparent url(/ui/bg.gif) -312px -55px no-repeat}#d a:hover{background:transparent url(/ui/bg.gif) -479px -55px no-repeat}#x a:hover{background:transparent url(/ui/bg.gif) -637px -55px no-repeat}#m a:hover{background:transparent url(/ui/bg.gif) -738px -55px no-repeat}#w a:hover{background:transparent url(/ui/bg.gif) -923px -55px no-repeat}body.html #h{background:transparent url(/ui/bg.gif) 0 -55px no-repeat}body.browserscripting #b{background:transparent url(/ui/bg.gif) -155px -55px no-repeat}body.serverscripting #s{background:transparent url(/ui/bg.gif) -312px -55px no-repeat}body.dotnet #d{background:transparent url(/ui/bg.gif) -479px -55px no-repeat}body.xml #x{background:transparent url(/ui/bg.gif) -637px -55px no-repeat}body.multimedia #m{background:transparent url(/ui/bg.gif) -738px -55px no-repeat}body.webbuilding #w{background:transparent url(/ui/bg.gif) -923px -55px no-repeat}
#ws{left:738px;width:185px}#ws a:hover{background:transparent url(/ui/bg.gif) -738px -55px no-repeat}body.webservices #ws{background:transparent url(/ui/bg.gif) -738px -55px no-repeat}a:link,a:visited{text-decoration:underline;color:#900b09;background:transparent}a:hover{text-decoration:underline;color:#f00;background:transparent}a:active{text-decoration:underline;color:#f00;background:transparent}div#navsecond li.currentLink a:link,div#navsecond li.currentLink a:visited{text-decoration:none;color:#f00;background:transparent}div#navsecond li.currentLink a:hover{text-decoration:underline;color:#f00;background:transparent}div#navsecond a:link,div#navsecond a:visited{text-decoration:none;color:#000;background:transparent}div#navsecond a:hover{text-decoration:underline;color:#000;background:transparent}div#navsecond a:active{text-decoration:underline;color:#000;background:transparent}div#navsecond a#link_help{color:#0479a7}div#navsecond a#link_about{color:#0479a7}div#maincontent .partner a{color:#0479a7}div#footer a:link,div#footer a:visited{text-decoration:none;color:#000;background:transparent}div#footer a:hover{text-decoration:underline;color:#000;background:transparent}div#footer a:active{text-decoration:underline;color:#000;background:transparent}div#maincontent p{margin:12px 0 0 0;line-height:150%}div#maincontent h1{margin:15px 0 0 15px}div#maincontent h3,div#maincontent h4{margin:20px 0 0 0}div#navsecond h2,div#sidebar h2{margin:10px 0 0 12px}body#homesecond div#navsecond li{margin:5px 0 0 0}div.backtoreference p{margin:0}div#w3school p{margin-left:15px}div#maincontent div p:first-child{margin:0}p.important span{color:#d00}p.tip span{color:#f95}p.inherited{color:#f00}p.inherited span{color:#999}p.chinese span{color:#00f}pre{width:620px;margin:10px 0 0 0;padding:10px;border:0;border:1px dotted #785;background:#f5f5f5}pre code{color:#00d}pre span{color:#999}pre span.code_comment{color:#999}blockquote{margin:15px}div#maincontent ul,div#maincontent ol{margin-top:10px;margin-left:35px;margin-bottom:0}div#maincontent li{margin-top:3px}div#navsecond ul,div#navsecond li,div#sidebar ul,div#sidebar li{margin:0;padding:0}div#navsecond ul,div#sidebar ul{margin-left:12px}div#navsecond li,div#sidebar li{list-style:none}div#navsecond li.list_apart{margin-top:10px}img{border:0}div#maincontent img{margin:25px 0 0 25px}div#maincontent div{width:710px;margin:0 0 0 15px;padding:20px 0 20px 0;border:0;border-top:1px solid #aaa;border-bottom:1px solid #aaa}body#homesecond dl{margin:0;padding:0}body#homesecond dt{font-weight:bold;font-size:14px;margin:0;padding:0}body#homesecond dd{color:#008;margin:10px 0 0 0;padding:0}body#homesecond dd p{margin:0;padding:0}div#maincontent div#toc div{margin:0;margin-top:15px;margin-bottom:35px;padding:0;border:0}div#toc img{float:left;margin:0;margin-right:10px}div#toc div dt,div#toc div dl{margin-top:0}div#example dl,div.example dl,div#moreexamples dl,div#toc dl,div#referencelist dl{margin:10px 0 0 0}div#example dt,div.example dt,div#moreexamples dt,div#toc dt,div#referencelist dt{margin:15px 0 5px 0}div#example dd,div.example dd,div#moreexamples dd,div#toc dd,div#referencelist dd{margin:0}dl.define{margin:10px 0 0 0}dl.define dt{margin:15px 0 3px 0;font-weight:bold;color:#0479a7}dl.define dd{margin:10px 0 0 10px;line-height:150%}span.deprecated{color:#e80000}.marked{color:#d00}p.gototop{text-align:right}div#maincontent canvas.canvas_example{border:1px solid #d3d3d3;background:#fff;width:300px;height:150px;margin-top:15px}div#maincontent div.panel,p.flip{width:400px;margin:0;padding:5px;text-align:center;background:#e5eecc;border:solid 1px #c3c3c3}div#maincontent p.flip{margin-top:15px}div.panel{display:none}div#maincontent input[type=text]{border:1px #bebebe solid;height:30px;padding-left:10px;margin:15px 0 0 0}div#maincontent input[type=submit],button{border:1px #bebebe solid;height:30px;padding-left:5px;padding-right:5px}div#maincontent input[type=submit]:hover,button:hover{border:1px #999 solid}div#maincontent select{border:1px #bebebe solid;height:25px;margin:15px 0 0 0}table.dataintable{margin-top:10px;border-collapse:collapse;border:1px solid #aaa;width:100%}table.dataintable th{vertical-align:baseline;padding:5px 15px 5px 5px;background-color:#d5d5d5;border:1px solid #aaa;text-align:left}table.dataintable td{vertical-align:text-top;padding:5px 15px 5px 5px;background-color:#efefef;border:1px solid #aaa}table.dataintable pre{width:auto;margin:0;padding:0;border:0;background-color:transparent}table.dataintable p{margin:0 0 2px 0}div#maincontent table.dataintable ul,div#maincontent table.dataintable li{list-style-type:none;margin:0;padding:0}table.dataintable td em{color:#00f;font-weight:normal}table.dataintable .table_value{color:#0f93d2}.no_wrap{white-space:nowrap}div#maincontent table.dataintable ul.listintable{margin:20px;padding:0}div#maincontent table.dataintable ul.listintable li{list-style-type:disc}table.dataintable td.html5_new{background:#efefef url(/i/site_table_bg.gif) top right no-repeat}
.html5_new_note span{color:blue}tr.notsupported{color:#999}table.browsersupport .bsIE{background-image:url('/i/compatible_ie.gif')}table.browsersupport .bsFirefox{background-image:url('/i/compatible_firefox.gif')}table.browsersupport .bsChrome{background-image:url('/i/compatible_chrome.gif')}table.browsersupport .bsSafari{background-image:url('/i/compatible_safari.gif')}table.browsersupport .bsOpera{background-image:url('/i/compatible_opera.gif')}table.browsersupport .bsNoIE{background-image:url('/i/incompatible_ie.gif')}table.browsersupport .bsNoFirefox{background-image:url('/i/incompatible_firefox.gif')}table.browsersupport .bsNoChrome{background-image:url('/i/incompatible_chrome.gif')}table.browsersupport .bsNoSafari{background-image:url('/i/incompatible_safari.gif')}table.browsersupport .bsNoOpera{background-image:url('/i/incompatible_opera.gif')}table.browsersupport .bsPreIE{background-image:url('/i/precompatible_ie.gif')}table.browsersupport .bsPreFirefox{background-image:url('/i/precompatible_firefox.gif')}table.browsersupport .bsPreChrome{background-image:url('/i/precompatible_chrome.gif')}table.browsersupport .bsPreSafari{background-image:url('/i/precompatible_safari.gif')}table.browsersupport .bsPreOpera{background-image:url('/i/precompatible_opera.gif')}table.browsersupport{margin-top:15px;border-collapse:collapse;width:70%}table.browsersupport td{padding:3px;height:32px;vertical-align:middle;background:#fff no-repeat center;border:1px solid #dadada}table.browsersupport td.bsProperty{font-family:courier new;white-space:nowrap;width:20%}table.browsersupport th{padding:3px;height:15px;vertical-align:middle;text-align:center;background-color:#efefef;border:1px solid #c3c3c3}div#tpn,div#bpn{height:29px;width:230px;margin:0;padding:0;border:0;background:#fff}div#tpn ul.prenext,div#bpn ul.prenext{height:29px;width:230px;background:transparent url(/ui/bg.gif) 0 -570px no-repeat;margin:0;padding:0;border:0;position:relative}div#tpn ul.prenext li,div#bpn ul.prenext li{margin:0;padding:0;list-style:none;position:absolute;top:0;overflow:hidden}ul.prenext li,ul.prenext a{display:block;height:29px}div#tpn ul.prenext a,div#bpn ul.prenext a{text-indent:-9999px;text-decoration:none}.pre{left:0;width:105px}.next{left:125px;width:105px}.pre a:hover{background:transparent url(/ui/bg.gif) 0 -619px no-repeat}.next a:hover{background:transparent url(/ui/bg.gif) -125px -619px no-repeat}div#course{background:transparent url(/ui/bg.gif) 0 -690px no-repeat;padding:45px 0 10px 0}div#afterschool{background:transparent url(/ui/bg.gif) -362px -690px no-repeat;padding:45px 0 10px 0}div#selected{background:transparent url(/ui/bg.gif) -362px -690px no-repeat;padding:45px 0 10px 0}div#tools{background:transparent url(/ui/bg.gif) -181px -690px no-repeat;padding:66px 0 10px 34px;margin:0}body#homesecond div#tools{background:transparent url(/ui/bg.gif) -181px -690px no-repeat;padding:45px 0 10px 0;margin:0}div#books{background:transparent url(/ui/bg.gif) -450px -326px no-repeat;padding:45px 0 0 15px;margin:0}div#ad{background:transparent url(/ui/bg.gif) -543px -690px no-repeat;padding:66px 0 10px 10px;margin:0}div#sidebar div#ad h2{color:#000;margin:0 0 25px 25px}div#ad span{margin:0 0 15px 0}div#tools h5{margin:0 0 12px 0;padding:0;overflow:hidden}div#tools h5#tools_reference,div#tools h5#tools_example,div#tools h5#tools_quiz,div#tools h5#tools_search{text-indent:-9999px;width:112px;height:68px}div#tools h5#tools_reference a,div#tools h5#tools_example a,div#tools h5#tools_quiz a,div#tools h5#tools_search a{display:block;margin:0;padding:0;width:100%;height:100%;text-decoration:none}div#tools h5#tools_reference a{background:transparent url(/ui/bg.gif) 0 -320px no-repeat}div#tools h5#tools_reference a:hover{background:transparent url(/ui/bg.gif) -113px -320px no-repeat}div#tools h5#tools_example a{background:transparent url(/ui/bg.gif) -0px -389px no-repeat}div#tools h5#tools_example a:hover{background:transparent url(/ui/bg.gif) -113px -389px no-repeat}div#tools h5#tools_quiz a{background:transparent url(/ui/bg.gif) -0px -458px no-repeat}div#tools h5#tools_quiz a:hover{background:transparent url(/ui/bg.gif) -113px -458px no-repeat}div#searchui{margin:15px 0 15px 5px;padding:0}div#searchui p{margin:0 0 5px 0;padding:0}#searchui label{margin:0 0 0 2px;text-transform:uppercase;letter-spacing:2px;font-size:11px}#searchui input.button{padding:0;margin:0;background:#ae4141;font:12px Verdana,Arial,Helvetica,sans-serif;color:#fff;width:25px;height:20px}#searchui input.box{margin:0 0 0 2px;width:135px;height:20px;background:#fdfdfd;font:12px Verdana,Arial,Helvetica,sans-serif}#floatMenu{padding-top:5px;border:1px solid #dcdcdc;position:absolute;top:0;left:50px;margin-left:0;width:220px;font-size:14px}#floatMenu ul{margin-left:0;background-color:White;list-style-type:none;padding:10px}#floatMenu ul li a{margin:1px;display:block;text-decoration:none;color:#000}
#floatMenu ul li a:hover{color:#fff;background-color:#ff8000}#floatMenu ul.menu1 li a:hover{border-color:#09f}