style.css

@import url('https://fonts.googleapis.com/css2?family=Abril+Fatface&family=Noto+Sans:ital@0;1&display=swap');

body {
    background-image: url("./equalizer-music-black-background-1080P-wallpaper.jpg");
    background-size: 100%;
    color: honeydew;
    font-family: 'Abril Fatface', cursive;
    font-family: 'Noto Sans', sans-serif;
    
}

.key {
    border: 2px solid grey;
    padding: 0.3rem;
    text-align: center;
    margin: 1rem;
    background: rgba(0, 0, 0, 0.4);
    text-shadow: 0 0 5px grey;
    transition: all 0.07s;
    padding: 1rem;
    margin-top: 15%;
}

.playing {
    transform: scale(1.1);
    border-color: #00ff00;
    box-shadow: 0 0 10px #00ff00;
    color: greenyellow;
}

kbd {
    display: block;
    font-size: 20px;
}

.keycontainer {
    display: flex;
    flex: 1;
    min-height: 10vh;
    align-items: center;
    justify-content: center;

}

.sound {
    color: #00cc44;
}

.fab {
    color: #00cc44;
    margin-left: 25%;
    margin-top: 23%;
}