body, ol, ul, h1, h2, h3, h4, h5, h6, p, th, td, dl, dd, form, fieldset, legend, input, textarea, select { margin:0; padding:0 }
body {margin:0 auto;max-width: 640px; font:12px "微软雅黑", "Arial Narrow", HELVETICA;
text-align:center; background:#fff; -webkit-text-size-adjust:100%; color:#131313; }
a { color:#FFF; text-decoration:none }
em { font-style:normal }
li { list-style:none }
img{width: 100%; height: auto; pointer-events: none; /***图片不能长按保存***/display:block;/***去除图片之间间隙***/}
table { border-collapse:collapse; border-spacing:0 }
p,h3 { word-wrap:break-word ;color: #232323}
.clearfix {*zoom:1; clear: both; }
#class_con{
	width:100%;
	margin:0  auto;
	}