#home {
background: url(https://images.cnblogs.com/cnblogs_com/guagua-19/1675989/o_200320095005bg.gif) repeat !important;
background-size: 1920px auto;

}

#header {
    position: relative;
    top: 0;
    left: auto;
    width: 80%;
    max-width: 1200px;
    height: 310px;
    margin: auto;
    border: none;
    padding: 0;
    background: none;
    BACKGROUND-COLOR:#ddd;
    padding-left: 30px;
    padding-right: 30px;
}


#main {
    position: relative;
    top: 0;
    left: auto;
    width: 80%;
    max-width: 1200px;
    height: auto;
    margin: auto;
    border: none;
    padding-right: 0;
    BACKGROUND-COLOR: #ddd;
    padding-left: 30px;
    padding-right: 30px;
}