NightlyMania-site/static/nightlycss.css

:root {
    --bgcolour: #212121;
    --sdbarcolour: #4c208f;
    --textcolour: #EFF0F1;
}
body {
    font-family: 'Helvetica', 'Arial', sans-serif;
    background-color: var(--bgcolour);
    margin: 0;
    color: var(--textcolour);
}

.container {
    display: flex;
    flex-direction: column;
}