main {
    width: 100%;
    max-width: 980px;
    margin: auto;
    background-color: #fff;
    font-size: 20px;
    color: #222;
    box-sizing: border-box;
    padding: 0 0 10px 0;
}

@media (max-width:760px) {
    main{
        padding: 10px 3vw;
    }
}