@media (min-width: 1200px) {
	
  [class*="span"] {
    float: left;
    min-height: 1px;
    margin-left: 30px;
  }

  .span3 {
    width: 250px;
  }
}

@media (min-width: 768px) and (max-width: 979px) {
  
  [class*="span"] {
    float: left;
    min-height: 1px;
    margin-left: 20px;
  }
  
  .span3 {
    width: 166px;
  }
  
  
}