body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 1em;
}

#setup-form {
    display: flex;
    align-items: center;
    gap: 0.5em;
    margin-bottom: 1em;
}

#message {
    font-weight: bold;
    min-height: 1.5em;
    margin-bottom: 1em;
}

#game-board {
    position: relative;
    width: 100%;
    height: 80vh;
    border: .1em dashed #7f7f7f;
}

.memory-button {
    position: absolute;
    height: 5em;
    width: 10em;
    border-color: #7f7f7f;
    font-size: 1.2em;
    cursor: pointer;
    transition: top 0.4s ease, left 0.4s ease;
}