.content_box{ 
 padding: 4px;
  background-color: #fff;
  
 width:350px;
  float:left;
  height:600px;
margin:10px;
overflow:auto;
font-size:12px;
direction:rtl; 
}

.content_holder_box{ 
width:300px;
float:left;
height:600px;
background-color: #fff;
  
padding:0px;
margin:0px;
color:#999999;
font-size:12px;
}

.content_holder_box:hover{ 
border:#0099FF solid 1px; 
}

.dragelement{ 
padding:5px; 
margin:3px; 
width:200px;
border:#000 solid 1px;
background-color:#FFF;
cursor:move;
color:#000;
font-size:10px;
}

.dropper{ width:200px;
height:250px;
margin:10px;
background:url(../img/drop_arrow_black.html) center no-repeat  ;
}

.dropper_hover{ border:#999999 dashed 1px; background:url(../img/drop_arrow_red.png) center no-repeat  ;}