.yui3-widget-buttons .yui3-button-icon{display:inline-block;*display:inline;zoom:1;width:13px;height:13px;background-repeat:no-repeat}.yui3-widget-buttons .yui3-button-icon-close{background-position:0 2px}.yui3-skin-night .yui3-widget-buttons .yui3-button-icon{background-image:url(sprite_icons.gif)}