/*返回顶部*/
.cd-container {
  width: 90%;
  max-width: 768px;
  height:3000px;
  margin: 2em auto;
  display:block
}
.cd-container::after {
  /* clearfix */
  content: '';
  display: table;
  clear: both;
}
.cd-top {
  display: inline-block;
  height: 40px;
  width: 40px;
  position: fixed;
  bottom: 40px;
  right: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
  /* image replacement properties */
  overflow: hidden;
  text-indent: 100%;
  white-space: nowrap;
  background: rgba(232, 98, 86, 0.8) url(../images/cd-top-arrow.svg) no-repeat center 50%;
  visibility: hidden;
  opacity: 0;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}
.cd-top.cd-is-visible {
  /* the button becomes visible */
  visibility: visible;
  opacity: 1;
}
.cd-top.cd-fade-out {
  /* 如果用户继续向下滚动,这个按钮的透明度会变得更低 */
  opacity: .5;
}
.no-touch .cd-top:hover {
  background-color: #e86256;
  opacity: 1;
}
@media only screen and (min-width: 768px) {
  .cd-top {
    right: 20px;
    bottom: 20px;
  }
}
@media only screen and (min-width: 1024px) {
  .cd-top {
    height: 60px;
    width: 60px;
    right: 30px;
    bottom: 30px;
  }
}

/*瀑布流*/
#waterfall{  width:756px; margin:0 auto;}

#waterfall img{width:203px;}

#waterfall .cell{ text-align:center; padding:10px 0px 5px 0px; width:223px;border:1px solid #E3E3E3; background:#fff; margin-bottom:20px;box-shadow: 0px 2px 3px 1px #ccc;}

#waterfall .cell:hover{box-shadow: 0px 2px 3px 1px #999;}

#waterfall .cell2{ width: 244px;  margin: 0 3px 20px 3px; border:1px solid #E3E3E3; background:#fff; float: left; }
#waterfall .cell2-pic{ width: 240px; height: 130px; margin:5px auto; overflow: hidden; text-align: center;  }
#waterfall .cell2-pic img{ width: 236px; }
#waterfall .cell2-wz{ overflow: hidden; height: 60px; line-height: 20px; padding: 0 5px; margin-bottom: 5px; }
#waterfall .cell2 p { padding-left: 5px; height: 20px; line-height: 20px; margin: 5px 0; overflow: hidden; }
#waterfall .cell2:hover{box-shadow: 0px 2px 3px 1px #999;}