body,p,a,div{
		margin:0px;
		padding:0px;
	}
	body{
		font:12px/22px Georgia serif;
		margin:0 auto;
	}
	a{
		color: #333;
		text-decoration: none;
	}
	a:hover{
		color: #548B02;
	}
	p{
	}
	#back-to-top{
	position:fixed;
	left:96%;
	top: 42%;
	}
	#back-to-top a{
	text-align:center;
	text-decoration:none;
	color:#d1d1d1;
	display:block;
	width:50px;
	/*使用CSS3中的transition属性给跳转链接中的文字添加渐变效果*/
		-moz-transition:color 1s;
	-webkit-transition:color 1s;
	-o-transition:color 1s;
	}
	#back-to-top a:hover{
		color:#979797;
	}
	#back-to-top a span{
	display:block;
	width:50px;
	background:url(../images/top.png) no-repeat center center;
	-moz-transition:background 1s;
	-webkit-transition:background 1s;
	-o-transition:background 1s;
	height: 35px;
	margin-bottom: 0px;
	}
	#back-to-top a:hover span{
		background:url(../images/top.png) no-repeat center center;
	}