清除默認樣式

 

<style>
body,p,h1,h2,h3,h4,h5,h6,dl,dd{margin:0; font-size:12px; font-family:"SimHei","Microsoft Yahei","Arial";}
ol,ul{padding:0;margin:0;}
li{list-style:none;}
a{text-decoration:none;}
img{border:none;vertical-align:top;}

b{font-weight: normal;}
i,em{font-style:normal;}

form{margin:0;}
input{margin:0;padding:0;}
select{margin:0;}
textarea{margin:0; padding:0;resize:none; overflow:auto; outline:none;}

th,td{padding:0;}
caption, th, td {
	text-align: left;
	font-weight: normal;
}
table{border-collapse:collapse;border-spacing: 0;}


blockquote, q {
	quotes: '"' '"' "'" "'";
}

header,footer,section,article,aside,nav,hgroup,address,figure,figcaption,menu,details{display:block;}
/* 默認樣式重置 (css reset)  */

.fl{
	float: left;
}
.fr{
	float: right;
}
.container{
    margin:0 auto;
}
.clear{clear: both;}
body{
	background: red;
}
/*main*/
</style>