body{
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background: cadetblue;
    font-family: "Otomanopee One", sans-serif;
}
main{
    display: flex;
    flex-direction: column;
    justify-content: center;
}
#led {
    padding: 3rem;
    letter-spacing: 0.5em;
    text-align: center;
    border: none;
    font-weight: bolder;
    box-shadow: 0px 0px 9px 10px #ccc;
    cursor: pointer;
}

.off{
    background: black;
    color: white;
    
}
.on{
    background: yellow;
    color: black;
}

.dht{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: white;
}
.up-time{
    text-align: center;
    color: white;
}

.btn{
    display: flex;
    justify-content: center;
}