*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    background:#eee;
}

.container{
    width:900px;
    margin:auto;
    background:#cfc7d6;
    padding:15px;
}

.header{
    height:80px;
    text-align:center;
    line-height:80px;
    border:2px solid #333;
}

.main{
    display:flex;
    margin:15px 0;
}

.left{
    width:20%;
    height:250px;
    border:2px solid #fff;
    text-align:center;
    padding-top:90px;
}

.content{
    width:60%;
    height:250px;
    border:2px solid #fff;
    text-align:center;
    padding-top:110px;
    margin:0 15px;
}

.right{
    width:20%;
    height:250px;
    border:2px solid #fff;
    text-align:center;
    padding-top:90px;
}

.footer{
    height:60px;
    text-align:center;
    line-height:60px;
    border:2px solid #333;
}