.kv-plugin-loading{width:25px;height:25px;background:transparent url(../img/loading-plugin.gif) center left no-repeat}.kv-hide{display:none}.kv-input-group-hide .input-group-addon,.kv-input-group-hide .input-group-btn,.kv-input-group-hide .input-group-prepend,.kv-input-group-hide .input-group-append{visibility:hidden}