*{
    margin: 0;
    padding: 0;
    font-size: 20px;
}
.main{
    background-color: black;
    color: white;
    height: auto;
    width: 270px;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    margin: auto;
}

.btn{
    height: auto;
    width: 40px;
}

.container{
    position: absolute;
    top: 30%;
    left: 40%;
}