.realmodal {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10000;
  visibility: hidden;
  -khtml-opacity: 0;
    -moz-opacity: 0;
         opacity: 0;
  filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);
  background: rgba(0,0,0,.5);

  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}
.realmodal-window {
  position: absolute;
  padding: 15px;
  z-index: 11000;
  background: #fff;
  -webkit-border-radius: 3px;
     -moz-border-radius: 3px;
          border-radius: 3px;
  -webkit-box-shadow: 0 0 10px rgba(0,0,0,.5);
     -moz-box-shadow: 0 0 10px rgba(0,0,0,.5);
          box-shadow: 0 0 10px rgba(0,0,0,.5);

  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

.realmodal *[data-realmodal="close"] {
  position: absolute;
  top: -10px;
  right: -10px;
  width: 25px;
  height: 25px;
  background: #333;
  cursor: pointer;
  -webkit-border-radius: 50%;
     -moz-border-radius: 50%;
          border-radius: 50%;
  -webkit-box-shadow: 0 0 5px rgba(0,0,0,.5);
     -moz-box-shadow: 0 0 5px rgba(0,0,0,.5);
          box-shadow: 0 0 5px rgba(0,0,0,.5);
}
.realmodal *[data-realmodal="close"]:after {
  content: '×';
  display: block;
  color: #fff;
  line-height: 25px;
  font-size: 15px;
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  text-align: center;
}
.realmodal *[data-realmodal="close"]:hover:after {
  color: #666;
}