body { color:#000; font:normal 12px Times New Roman, Times, serif; }
h1 { font-size:16px; color:#000; text-align:center; }
#container { margin:1em auto; width: 750px; padding: 5px; border: 1px solid #000; text-align:left; }
.box { float: left; height: 100px; width: 175px; padding: 5px; }
.group:after { visibility:hidden; display:block; height:0; clear:both; font-size:0; content:' '; }
.ie .group { zoom:1; }