.MultiLayer_Work_Area { overflow:hidden; position:relative; width:600px; height:340px;
  border:1px solid #3f7f00; float:right; margin-left:15px;; /* margin-right:auto;*/ margin-bottom:10px; }

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

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