有趣的CSS3背景 斜条纹

今天逛的时候发现了一个有趣的css3实现的背景效果，代码实现

.noaccess {
      position: absolute;
      width: 300px;
      height: 100px;
      z-index:;
      background-color: #999;
      opacity: .5;
      top:;
      bottom:;
      display: block;
      background-image: -webkit-gradient(linear,0 100%,100% 0,color-stop(0.25,rgba(255,255,255,.2)),color-stop(0.25,transparent),color-stop(0.5,transparent),color-stop(0.5,rgba(255,255,255,.2)),color-stop(0.75,rgba(255,255,255,.2)),color-stop(0.75,transparent),to(transparent));
      /* background-image: -webkit-linear-gradient(45deg,rgba(255,255,255,.2) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.2) 50%,rgba(255,255,255,.2) 75%,transparent 75%,transparent); */
      background-image: -moz-linear-gradient(45deg,rgba(255,255,255,.2) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.2) 50%,rgba(255,255,255,.2) 75%,transparent 75%,transparent);
      background-image: -o-linear-gradient(45deg,rgba(255,255,255,.2) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.2) 50%,rgba(255,255,255,.2) 75%,transparent 75%,transparent);
      /* background-image: linear-gradient(45deg,rgba(255,255,255,.2) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.2) 50%,rgba(255,255,255,.2) 75%,transparent 75%,transparent); */
      -webkit-background-size: 32px 32px;
      -moz-background-size: 32px 32px;
      -o-background-size: 32px 32px;
      background-size: 32px 32px;
    }