// 通用的样式

.bu-fl {
    float: left;
}

.bu-fr {
    float: right;
}

.bu-elipsis {
    overflow: hidden;
    -ms-text-overflow: ellipsis;
    text-overflow: ellipsis;
}

.bu-elipsis-2 {
    -webkit-line-clamp: 2;
}

.bu-fixed-b {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
}

.bu-fixed-t {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
}