.stage { width: 715px; height: 40px; overflow: hidden;  }
.stage ul { display: block; list-style-type: none; margin: 0; padding: 0; width: 735px; }
.stage ul li { float: left; width: 25%; height: 25px; }
.stage ul li a { display: block; text-align: center; padding: 10px 0; margin: 0 20px 0 0; font-size: 18px; font-weight: bold; }
.stage ul li.silver a { background-color: #cccccc; color: #000000; }
.stage ul li.black a { background-color: #000000; color: #ffffff; }
.stage ul li.green a { background-color: #2ad52a; color: #000000; }
.stage ul li.yellow a { background-color: #e6e70c; color: #000000; }