/* *{
    margin: 0;
    padding: 0;
} */

#calc-block{
    border: 2px solid yellow;
    width: max-content;
    margin: 100px auto;
    padding: 60px 30px;
    box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
    border-radius: 10px;
}

#calc-block>h2{
    font-size: larger;
    margin-bottom: 15px;
}

#number-system>div{
    margin-bottom: 15px;
}