Autofill children width to fill parent

auto-child-width.css

/*! 
 * Description:
 * Fill variable child containers to 100% width 
 * http://stackoverflow.com/a/5862782
 */

.control-container {
    width: 100%;
    display: table;
    table-layout: fixed;
}

.control-container > div {
    display: table-cell;
    padding: 15px 5px;
}