body {
    background-image: url(images/bricks%209.gif);
    color: white;
    margin: 0;
    font-family: courier;
}

.everything {
    padding: 30px 10%;
}

.pagetitle {
    max-width: 500px;
    margin: auto;
}

div.contents {
    width: 70%;
}

ul.sidenav {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: auto;
}

ul.sidenav li a{
    display: block;
    color: #000;
    padding: 10px 16px;
    font-weight: 600;
    text-decoration: none;
    background-color: #f1f1f1;
    margin: 20px 0px;
}

ul.sidenav li a:hover {
    background-color: #555;
    color: white;
}

@media screen and (min-width: 500px) {
    ul.sidenav {
        width: 25%;
        float: left;
    }

    div.contents {
        margin-left: 30%;
    }
}

@media screen and (max-width: 500px) {
    ul.sidenav li a {
        text-align: center;
        float: none;
        max-width: 500px;
        height: auto;
        position: relative;
    }

    div.contents {
        margin-left: 0;
        width: 100%;
    }
}