body{ margin:0; font-size:12px;}
img{border:none;margin: 0;padding: 0;}
.big_content{
	width: 100%;
	min-width: 1440px;
}
.content{
	width: 1440px;
	height: auto;
	margin: 0 auto;
	overflow: hidden;
}
.content img{
	float: left;
}