Simple ribbon tilted 45 degrees – perfect to announce an ICO *hint hint*

ribbon.html

<!-- This is the style -->
<style type="text/css">.ribbon {
  background-color: #a00;
  overflow: hidden;
  white-space: nowrap;
  /* top left corner */
  position: absolute;
  left: -50px;
  top: 40px;
  /* 45 deg ccw rotation */
  -webkit-transform: rotate(-45deg);
     -moz-transform: rotate(-45deg);
      -ms-transform: rotate(-45deg);
       -o-transform: rotate(-45deg);
          transform: rotate(-45deg);
  /* shadow */
  -webkit-box-shadow: 0 0 10px #888;
     -moz-box-shadow: 0 0 10px #888;
          box-shadow: 0 0 10px #888;
}
.ribbon a {
  border: 1px solid #faa;
  color: #fff;
  display: block;
  font: bold 81.25% 'Helvetica Neue', Helvetica, Arial, sans-serif;
  margin: 1px 0;
  padding: 10px 50px;
  text-align: center;
  text-decoration: none;
  /* shadow */
  text-shadow: 0 0 5px #444;
}
</style>

<!-- The actual element -->
<div class="ribbon">
  <a href="#"> ICO Coming Soon!</a>
</div>