Better HR tag styling

better-hr.css

hr.carved {
  float: none; 
  width: 100%; 
  height: 2px;
  margin: 1.4em 0;
  border: none; 
  background: #ddd;
  background-image: -webkit-gradient(
      linear,
      left top,
      left bottom,
      color-stop(0.5, rgb(221,221,221)),
      color-stop(0.5, rgb(255,255,255))
  );
  background-image: -moz-linear-gradient(
      center top,
      rgb(221,221,221) 50%,
      rgb(255,255,255) 50%
  );
}