.main{
    height: 150px;
    width: 55px;
    border: 2px solid black;
    background-color: aqua;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-evenly;
    align-items: center;
    border-radius: 5px;
    
}
.red{
    height: 30px;
    width: 30px;
    background-color: red;
    border-radius: 50%;
    border: 2px dashed black;
    /* margin: 5px; */
}
.yellow{
    height: 30px;
    width: 30px;
    background-color: yellow;
    border-radius: 50%;
    border: 2px dashed black;
    /* margin: 5px; */
}
.green{
    height: 30px;
    width: 30px;
    background-color: green;
    border-radius: 50%;
    border: 2px dashed black;
    /* margin: 5px; */
}