*{ margin:0; padding:0;}

body{ font-family:Arial, Helvetica, sans-serif; height:6280px; background:#eeeeee;}
a{ text-decoration:none;} 
.clear{ clear:both;}
.w_100{ width:100%; height:auto; overflow: hidden;}
.w_1400{ width:1400px; height:auto; overflow:hidden; margin:0 auto;}
.FL{ float:left;}
.FR{ float:right;}
.mt30{ margin-top:30px;}