less-base-function.less

.left() { float:  left; _display: inline; }
.right() { float: right; _display: inline; }


.clear() {

    &:after{
        content:" ";
        display:block;
        height:0;
        clear:both;
        visibility:hidden;
    }
    zoom:1;
}



/* 处理兼容性的透明基础类 */
.opacity (@opacity) {
    opacity: @opacity;
    -ms-filter: ~`"progid:DXImageTransform.Microsoft.Alpha(Opacity=" + "@{opacity}" * 100 + ")"`;
    -ms-filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod='scale');
    filter: ~`"alpha(opacity=" + "@{opacity}" * 100 + ")"`;
}