div.wicket-mask {
 position:absolute;top:0;left:0;
 width:100%;height:100%;
 background:rgb(230,230,230);
 opacity:.50;
 filter:alpha(opacity=50);
 -moz-opacity:0.5;
 text-decoration:none;
}
div.wicket-spinner {
 position:absolute;
 background-image:url(../img/ajax-loader.gif);
 background-repeat: no-repeat;
 width: 32px;
 height: 32px;
 background-color: transparent;
}