* {
    padding: 0;
    margin: 0;
}

a {
    text-decoration: none;
}

li {
    list-style-type: none;
}


html {
    width: 100%;
    height: 100%;
}

body {
    background-color: #fff;
    width: 100%;
    height: 100%;
}



/* 内容 */
main {
    width: 100%;
    height: calc(100% - 70px);
    background-color: #f9f9f9;
}

.container {
    width: 980px;
    height: 100%;
    margin: 0 auto;
    border-right: 4px double #eee;
    display: flex;
    position: relative;
}