*{
    margin: 0;
    padding: 0;

}
.kehu{
    width: 100%;
    height: 500px;
    float: left;

    background: #F5F6F7;
}
.kehu-text{
    width: 100%;
    height: 20%;
    text-align: center;
    line-height: 120px;
    font-size: 30px;

}

.kehu-img{
    width: 1000px;
    height: 70%;
    margin: 0 auto;

}
ul li {
    float: left;
}
ul li a img{
    width: 150px;
    height: 100px;
    margin-left: 20px;
}