body {
    font-family: Arial, sans-serif;
    text-align: center;
    background: #111;
    color: white;
}

h1 {
    margin-top: 20px;
}

.keyboard {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    gap: 8px;
}

.key {
    width: 60px;
    height: 200px;
    background: white;
    color: black;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 10px;
    border-radius: 5px;
    cursor: pointer;
    user-select: none;
    transition: 0.1s;
    font-weight: bold;
}

.key:active,
.key.active {
    background: #ffcc00;
    transform: scale(0.98);
}