/* debug styles*/
.show-grid{margin-top: 10px;margin-bottom: 20px;}
.show-grid [class*="span"]{background-color: #eee;min-height: 30px;line-height: 30px;}
.show-grid:hover [class*="span"]{background: #ddd;}
.show-grid .show-grid{margin-top: 0;margin-bottom: 0;}
.show-grid .show-grid [class*="span"], .show-grid .show-grid .show-grid .show-grid [class*="span"]{background-color: #ccc;}
.show-grid .show-grid .show-grid [class*="span"]{background-color: #eee;}