* {margin:0; padding:0;}
body {width:42em; margin:3em auto; background:#ececec; color:#222; font: 1em/1.5 Arial,Helvetica,Sans-Serif;}
h1 {margin-bottom:.2em; font-size:2em;}
h2 {margin: .8em 0; font-family: Geogia,Times,Serif; font-size:1.4em;}
pre {margin:1em 0; width:100%; overflow-x: auto; *padding-bottom:1em;}
code {font-family:Monospace; font-size:.99em;}
.copyleft {
	margin-top: 2em;
	margin-right: 0;
	margin-bottom: 2em;
	margin-left: 0;
}
/*tabÑùʽ*/
.tab {position:relative; width:20em;}
.tab dt {
	position:relative;
	z-index:2;
	bottom:-1px;
	float:left;
	border:1px solid #ccc;
	background:#333;
	color:#000000;
	cursor:pointer;
	background-color: #F5EBE2;
	margin-top: 0;
	margin-right: 4px;
	margin-bottom: 0;
	margin-left: 4px;
	padding-top: 4;
	padding-right: 12px;
	padding-bottom: 0;
	padding-left: 12px;
}
.tab .current {border-bottom:1px solid #fff; font-weight:bold; background:#fff; color:#333;}
.tab dd {position:absolute; z-index:1; top:1.6em; left:0; width:18em; padding:1em; border:1px solid #ccc; background:#fff;}