.btm-zan {
    width: 100%;
    text-align: center;
}

.btm-zan .zan {
    background: rgba(0, 0, 0, 0) url(../img/follow.png) no-repeat scroll left top;
    color: #2e2d29;
    display: block;
    font-size: 16px;
    height: 30px;
    line-height: 36px;
    left: 218px;
    text-align: right;
    top: 0;
    width: 80px;
    z-index: 9;
    position: absolute;
}

.btm-zan .hover {
    background: url(../img/yizan.png) center no-repeat;
    background-size: 50px;
    width: 50px;
    height: 50px;
    margin: 0 auto;
    display: block;
}

.btm-zan .zan span {
    color: #888;
    display: inline-block;
}