img{border:none;}
body{width:1000px;text-align:left; margin: 0px auto;}
#box_a{ width:180px; float:left; padding-top: 0; padding-right: 10px; padding-left: 0; }
#box_b{ width:500px; float:left; padding-top: 0; padding-right: 10px; padding-left: 0; }
#box_c{ width:300px; float: right; clear: right; }
#box_d{ text-align: center; clear: both; margin-top: 20px; border-top:2px solid #ffffff; }
#box_f{ text-align: center; width: 1000px; clear: both; border-top:2px solid #ffffff; line-height:15px; }