style.css

body {
    text-align: center;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    min-height: 100vh;
    font-family: 'Arial Narrow', Arial, sans-serif;
    text-transform: uppercase;
}

#canvasWrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#canvasContainer {
    height: 55vw;
    width: 55vw;
    max-height: 55vw;
    max-width: 55vw;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: auto;
}

canvas {
    max-width: 100%;
    max-height: 100%;
}

#controls {
    margin-top: 10px;
}

#controls button {
    background-color: transparent;
    border: 2px solid black;
    padding: 0.6rem 1.2rem;
    cursor: pointer;
    margin: 0.3rem;
}

#controls button:hover {
    background-color: lightgray;
}

#controls button:focus-visible {
    outline: none;
}

footer#credit {
    width: 100%;
    text-align: center;
    font-size: 0.7rem;
}

footer#credit a {
    color: black;
    text-decoration: none;
}

footer#credit a:hover {
    text-decoration: underline;
}

@media (max-width: 580px) {
    h1 {
        font-size: 1.4rem;
    }
}

@media (max-width: 589px) {
    #controls button {
        width: 80vw;
    }
}