html,body{min-height:100%;} ============优化================ html{min-height:100%;} html,body{min-height:100%;}body{background-image:url(bg_640.jpg);background-size:cover;babackground-repeat:no-repeat;}.main{padding-top:141%;text-align:cen
html,body{min-height:100%;}
============优化================
html{min-height:100%;}
html,body{min-height:100%;}
body{background-image:url(bg_640.jpg);background-size:cover;babackground-repeat:no-repeat;}
.main{padding-top:141%;text-align:center;}
.main a img{width:40%;}
.padd{padding-left:5%;}
