* {
    margin: 0;
    padding: 0;
}

body {
    background-color: #ccc;
    text-align: center;
}

.judul {
    background-color: white;
    width: 400px;
    border-radius: 100px;
    margin: 20px auto;
    padding: 20px;
    border: solid 2px black;
}

h1 {
    font-family: Arial, Helvetica, sans-serif;
}

.container {
    width: 180px;
    margin: 20px auto 0;
    border: solid 2px black;
    background-color: cadetblue;
}

.tiang {
    width: 20px;
    height: 250px;
    border: solid 2px black;
    border-top: 0;
    margin: auto;
    background-color: grey;

}

.light {
    width: 100px;
    height: 85px;
    border-top: solid 15px black;
    border-radius: 100px;
    margin: 20px auto 20px;
    transition: 0.3s;
}

.light:hover {
    cursor: pointer;
    transform: scale(1.1,1.1);
}

.green {
    background-color: green;
}

.yellow {
    background-color: yellow;
}

.red {
    background-color: red;
}