*{
    margin: 0;
    padding: 0;
}
img { 
    background-size: cover;
    min-height: 100%;
    min-width: 1024px;
    width: 100%;
    height: auto;
    position: fixed;
    top: 0;
    left: 0;
    z-index: -4;
}
.keys{
    display: flex;
    flex: 1;
    min-height: 93vh;
    align-items: center;
    justify-content: center;
}
.key{
    border: .4rem solid rgb(115, 98, 240);
    border-radius: .5rem;
    margin: 1rem;
    font-size: 1.5rem;
    padding: 1rem .5rem;
    transition: all .07s ease;
    width: 10rem;
    text-align: center;
    color: white;
    /* background: rgba(0,0,0,0.4); */
    background: rgba(233, 200, 200, 0.4);
    text-shadow: 0 0 .5rem black;
}
.playing{
    transform: scale(1.1);
    border-color: #ffc600;
    box-shadow: 0 0 1rem #ffc600;
}
kbd{
    display: block;
    font-size: 4rem;
}
.sound {
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: .1rem;
    color: #ffc600;
}
.message{
    background-color: white;
    padding: 4px 4px 4px 40%;
    border: 2px solid yellow;
}