.XOver_2Way { overflow:hidden; position:relative; width:900px; height:340px;
  border:1px solid #3f7f00; margin-left:auto; margin-right:auto; margin-bottom:10px; }
.XOver_3Way { overflow:hidden; position:relative; width:900px; height:500px;
  border:1px solid #3f7f00; margin-left:auto; margin-right:auto; margin-bottom:10px; }

..disable { opacity : .35; background-color:lightgray; border:1px solid gray;}