body{font-family:Arial, Helvetica, sans-serif; font-size:12px}
.shell{margin:auto; width:1000px}
p{font-weight:bold; font-size:14px; margin-left:20px; padding-right:20px; background-color:#f2f2f2; padding:10px; }
.left{float:left; width:45%;}
.right{float:right;  width:45%;}