.checkbox{width:100%;height:100%; margin:0px; text-align:center}
.checkbox a{ display:inline-block;width:100%; height:100%; text-align:center;}
/*µ¯¿òÑùʽ1*/
.cd-popup{
    position: fixed;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    -webkit-transition: opacity 0.3s 0s, visibility 0s 0.3s;
    -moz-transition: opacity 0.3s 0s, visibility 0s 0.3s;
    transition: opacity 0.3s 0s, visibility 0s 0.3s;
    z-index:9999;
}
.cd-popup.is-visible {
    opacity: 1;
    visibility: visible;
    -webkit-transition: opacity 0.3s 0s, visibility 0s 0s;
    -moz-transition: opacity 0.3s 0s, visibility 0s 0s;
    transition: opacity 0.3s 0s, visibility 0s 0s;
}
.cd-popup-container{
    position: relative;
    width:900px;
    margin-top:-250px;
  margin-left:auto;
  margin-right:auto;
    height: 500px;
  padding-top:30px;
    top:50%;
    background: #FFF;
    border-radius: .4rem .4rem .4rem .4rem;
    text-align: center;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    -webkit-transform:scale(0.8);
    -moz-transform:scale(0.8);
    -ms-transform:scale(0.8);
    -o-transform:scale(0.8);
    transform:scale(0.8);
    -webkit-backface-visibility: hidden;
    -webkit-transition-property: -webkit-transform;
    -moz-transition-property: -moz-transform;
    transition-property: transform;
    -webkit-transition-duration: 0.3s;
    -moz-transition-duration: 0.3s;
    -ms-transition-duration: 0.3s;
    -o-transition-duration: 0.3s;
    transition-duration: 0.3s;
}
.cd-popup-close{position: absolute;right: 0px;top: 0px;z-index: 100;width:30px;height:30px;display: block;font-size:14px;background:url(http://dfs.yun300.cn/group1/M00/0B/C9/rBQBHVq8gIqEa8ELAAAAANW6Ees554.png) no-repeat 50% 50%;}
.is-visible .cd-popup-container{
  -webkit-transform:scale(1);
  -moz-transform:scale(1);
  -ms-transform:scale(1);
  -o-transform:scale(1);
  transform:scale(1);
  }
  .cd-buttons{
    width:900px;
  }