*{

  margin: 0;

  padding: 0;

  font: 14px "方正小篆体";

  }

  body{

    background-color: #555;

    }

  #wrap{

      width: 300px;

      height: 300px;

      margin: 40px auto 0;

      background: url(http://pic.58pic.com/58pic/13/61/00/61a58PICtPr_1024.jpg) no-repeat left top;

      border-radius: 50%;

    }

    .mask{

      display: none;

      width: 300px;

      height: 300px;

      background-color:rgba(95,95,95,0.3);

      border-radius: 50%;

      text-align: center;

    }

    #wrap:hover .mask{

      display: block;

      color: #fff;

      }

    span{

      line-height: 32px;

      display: inline-block;

      margin-top: 40%;

      }

​