.bubble{overflow:hidden;_overflow:visible;_zoom:1;margin:10px;}.bubble b b{position:absolute;height:0;width:0;border:solid 7px transparent;_border:7px solid #fff;}.bubble .bottom{visibility:hidden;}.bubbleTop .inner{margin-top:7px;}.bubbleTop b b{top:0;left:10px;border-top-style:none;}.bubbleLeft .inner{margin-left:7px;}.bubbleLeft b b{top:10px;left:0;border-left-style:none;}.bubbleRight .inner{margin-right:7px;}.bubbleRight b b{top:10px;right:0;border-right-style:none;}.bubbleBottom .inner{margin-bottom:7px;}.bubbleBottom b b{bottom:0;left:10px;border-bottom-style:none;}.bubbleBottom .bottom{visibility:visible;}.bubbleHorizontalExt b b{top:auto;bottom:10px;visibility:visible;}.bubbleVerticalExt b b{right:10px;left:auto;}