@media (max-width: 768px){
    #p-logo{
        left: 50%;
    transform: translateX(-50%);
    }
    div#column-content{
        margin: 0;
    float: none;
    clear: both;
    }
    div#content{
    margin: 155px 16px 16px 16px;
    border-right: 1px solid #aaa;
    padding: 16px;
    overflow: hidden;
    }
    .box-1{
        float: none!important;
        clear: both;
        margin-left: 0!important;
        margin-bottom: 18px;
    }

    table#toc{
        width: 100%;
    }

}