:root {
    --bgcolour: #212121;
    --sdbarcolour: #6600ff;
    --textcolour: #EFF0F1;
}
body {
    font-family: 'Helvetica', 'Arial', sans-serif;
    background-color: var(--bgcolour);
    margin:0;
    color: var(--textcolour);
}

.sidenav {
    height: 100%;
    width: 85px;
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    background-color: var(--bgcolour);
    overflow-x: hidden;
    padding-top: 20px;
    border-right: 2px solid var(--sdbarcolour);
}

.sidenav a {
    padding: 6px 6px 6px 10px;
    text-decoration: none;
    font-size: 25px;
    color: #818181;
    display: block;
}

.sidenav a:hover {
    color: #f1f1f1;
}

#content {
    margin-top: 20px;
    margin-left:138px;
    padding: 1px 16px;
}