.clear{clear:both;height:0;line-height:0;font-size:0;visibility:hidden;overflow:hidden}
.clearfix:after{visibility: hidden;display: block;font-size: 0;content: " ";clear: both;height: 0;zoom:1;}
.l{float:left;}.r{float:right;}
/*reset样式重置*/
.btn3{position:fixed;
  z-index:3;
  bottom:0px;
  border-top:1px solid #ccc;
  background:#4aa4f7;
  width:100%;
  text-align:center;
  box-sizing:border-box;
  -webkit-box-sizing:border-box; z-index:999}
.dmenu{position:relative;
    float:left;
    width:33.33%;
    height:50px;
    line-height:50px;
    background:#f1f1f1;
    border-right:1px solid #ccc;
    box-sizing:border-box;
    -webkit-box-sizing:border-box;}
.dmenu:last-child{border-right:none;}
.new-sub{position:absolute;
      bottom:60px;
      z-index:10;
      width:100%;
      padding: 0px 10px;
      background: #fff;
      box-sizing:border-box;
      -webkit-box-sizing:border-box;
      border: 1px solid #EEEEEE;
      border-radius: 5px;
      display:none;}
.new-sub li{width: 100%;
        background:#fff;
        float:none;
        box-sizing:border-box;
        -webkit-box-sizing:border-box;
        border-top:1px solid #f2f2f2;}
.new-sub li a{display:block;
          height:50px;
          line-height:50px;
          text-align:left;
          background:#fff;
          color:#333;
          border:none;
          text-align:center;
          font-size:16px;}
.sanjiao{position:absolute;bottom:5px;right:5px;width:0;height:0;border:5px solid transparent;border-right:5px solid #999;border-bottom:5px solid #999;opacity:.5;}
.bt-name{font-size:16px;color:#000;}
.bt-name a{display:block;font-size:16px;color:#000;}
.new-sub .tiggle{
	width:0px;
      height:0px;
      position:absolute;
      left:50%;
      margin-left:-10px;
      bottom:-9px;
      border-top:10px solid #EEEEEE;
      border-left:10px solid transparent;
      border-right:10px solid transparent;
      z-index:10;
  }
  .new-sub .innertiggle{
  	width:0px;
      height:0px;
      position:absolute;
      left:50%;
      margin-left:-9px;
      bottom:-8px;
      border-top:9px solid white;
      border-left:9px solid transparent;
      border-right:9px solid transparent;
      z-index:11;
  }