.fl-l {
    float: left;
    line-height: 30px;
}

.fl-r {
    float: right;
    line-height: 30px;
}

.top- {

    height: 30px;
    font-size: 14px;
    background: #fff;
}

.top- span {
    margin-left: 20px;
}

.content{
    width: 1200px;
    margin: 0 auto;
}

.content {
    overflow: hidden;
}