body {
    background-color: #000;
    color: white;
    padding: 0;
    margin: 0;
}

a {
    color: white;
    text-decoration: underline;
    font-weight: bold;
}

.topbar {
    width: 100%;
    height: 3vw;
    background-color: orange;
}

.banner {
    width: 95%;
    margin: 1vw auto;
    outline: orange 2px solid;
}

.container {
    width: 95%;
    margin: 1vw auto;
    display: flexbox;
    columns: 3;
}

.group {
    display: inline;
}

.block {
    outline: orange 2px solid;
}