@media all and (max-width:800px) {
    html {
        background-color: lime;
        /*background-color:#d1d1d1;*/
    }

   body {
        width:100%;
    }

   header.pplive {
    width: 800px;
    height: 71px;
    margin: 0 auto;
    display:block;
}
}