#carbonads {
   float: right;
   width: 300px;
   margin-left: 30px;
   .carbon-img {
     float: left;
     padding-right: 10px;
   }
   .carbon-poweredby {
     color: @gray-light;
     margin-top: 2px;
     font-size: 12px;
     display: block;
   }
 }
 
 .vertical-ad #carbonads {
   float: none;
   width: 130px;
   margin-left: 0;
   .carbon-img {
     float: none;
     display: block;
     padding-right: 0;
     padding-bottom: 10px;
   }
 }