.box_window{
  width:700px;
  position:fixed;
  top:15%;
  left:50%;
  margin-left:-350px;
  z-index:11;
  background: #fff;
  display:none;
  padding:20px;
  border-radius: 5px;
  background: url('/img/bg2.jpg');
  text-align:center;
  color:white;
  font-size: 17px;
  border: solid white 1px;
}
.box_window_in {
  position: relative;
  overflow-y:auto;
}
.box_title {
  position: absolute;
  left: 0px;
  top: -30px;
  color: #fff;
  font-size:20px;
}
.bw_close{
  position:absolute;
  top: -25px;
  font-size: 10px;
  color: #fff;
  right:0px;
  cursor:pointer;
  z-index: 2;
}
.mask{
  position:fixed;
  background:rgba(0, 0, 0, 0.38);
  display:none;
  height:100%;
  width: 100%;
  z-index:10;
}
.to_blur.blur {
 -webkit-filter: blur(5px);
 -moz-filter: blur(5px);
 -o-filter: blur(5px);
 -ms-filter: blur(5px);
 filter: blur(5px);
}