body {
    font-family: 'Roboto Slab', Courier, monospace;
    text-align: center;
    padding: 20px;
    margin: 0;
}

h1 {
    font-weight: 600;
    font-size: min(3em, 30vw);
}

h2 {
    font-weight: 600;
    font-size: min(2em, 20vw);
}

h3 {
    font-weight: 600;
    font-size: min(1.6em, 16vw);
}

.rotating {
    animation: rotation 3s infinite linear;
}

@keyframes rotation {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(359deg);
    }
}

button {
    background-color: #222;
    color: lightyellow;
    padding: 20px;
    border: #666 solid 5px;
    border-radius: 10px;
    font-weight: 600;
    font-size: min(1.4em, 14vw);
    font-family: 'Roboto Slab', Courier, monospace;

    margin: auto;
    display: flex;
    justify-content: center;
    column-gap: 20px;
}

button:hover {
    background-color: #444;
}

button:active {
    background-color: #333;
}