.off-bulb {
    margin-left: 50px;
    width: 300px;
    height: 300px;
    border: 2px solid black;
    border-radius: 50%;
}
.on-bulb {
    margin-left: 50px;
    width: 300px;
    height: 300px;
    border: 2px solid yellow;
    border-radius: 50%;
    background-color: yellow;
    filter: blur(6px);
}
.container { 
    /* border: 2px solid red; */
    display: flex;
    flex-direction: column;
    align-items: center;
    
}
.btn {
    all: unset;
    border: 2px solid black;
    padding: 20px;
    border-radius: 6px;
}
.btn:active {
    /* transform: translateY(2px); */
    background-color: black;
    color: gray;
    box-shadow: 0 2px 0 #000;
}