.product {
  margin: 50px auto;
  width: 280px;
  height: 370px;
  background: white;
  border: 1px solid #333;
  position: relative;
  z-index: 90;
}
.ribbon-wrapper {
  width: 85px;
  height: 88px;
  overflow: hidden;
  position: absolute;
  top: -3px;
  left: -3px;
  .ribbon {
    font: bold 15px sans-serif;
    color: #333;
    text-align: center;
    -webkit-transform: rotate(-45deg);
    -moz-transform:    rotate(-45deg);
    -ms-transform:     rotate(-45deg);
    -o-transform:      rotate(-45deg);
    position: relative;
    padding: 7px 0;
    top: 15px;
    left: -30px;
    width: 120px;
    background-color: #ebb134;
    color: #fff;
  }
}