.round-div{border:1px solid black;padding:1em 1em 1em 1em;width:50%;-moz-border-radius:7px;-webkit-border-radius:7px;}.advertisement{float:right;border:0 solid black;padding:1em;width:325px;background:#B9D3EE;-moz-border-radius:7px;-webkit-border-radius:7px;}