body {
    box-sizing: border-box;
    margin: 0;
    padding: 0.5rem;

    display: flex;
    flex-direction: column;
    gap: 1rem;

    place-content: center;
    place-items: center;
}

img {
    --size: 300px;

    width: var(--size);
    height: var(--size);

    cursor: pointer;
}

button {
    cursor: pointer;
    margin: 2px;
}