.oldbrowser {
    color:#000;
    display:block;
    padding:.5em;
    border:2px solid #000;
    border-top-color:#ffffe1;
    border-left-color:#ffffe1;
    background:#ffffe1 url(/images/icons/warning.png) .5em 50% no-repeat;
    overflow:hidden;
}

.oldbrowser:hover {
  text-decoration:none;
  border-top-color:#000;
  border-left-color:#000;
  border-bottom-color:#ffffe1;
  border-right-color:#ffffe1;
}

.oldbrowser span {
  padding-left: 16px;
  overflow:hidden;
}