html {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.box {
    display: flex;
    justify-content: center;
    align-items: center;
}

.lightswitch {
    width: 50%;
    height: 50%;
    margin: 0;
    padding: 0;
    filter: drop-shadow(8px 8px 1px black);
    z-index: 1;
    position: relative;
}

.light {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    position: absolute;
    background-color: black;
    opacity: 80%;
    display: none;
}

.fa-solid {
    position: absolute;
    font-size: 200%;
    left: 5%;
    top: 90%;
    color: black;
}