style.css

*{
    margin: 0;
    padding: 0;
}


h1{
    margin: 0px auto;
    text-align:center;
}
.calc{
    max-width: 500px;
    height: 400px;
    margin: 0px auto;
    text-align: center;
    margin-top: 10px;
    max-width: 400px;
    box-shadow: 0px 4px 06px 0px rgb(0,0,0,0.2);
    transition: 0.2s;
    font-size: 0;
    
}
.calc:hover{
    box-shadow: 0px 16px 32px 0px rgb(0,0,0,0.2);
}
.screen{

}
.screen #values{
    text-align: right;
    font-size: 30px;
    padding: 5px;
    white-space: 3px;
    letter-spacing: 2px;
    width:386px;
    height: 100px;
    font-weight: bold;
}
.calc-body{
    height:300px;
}
.btn{
    width:100px;
    height: 60px;
    background-color: rgb(22, 20, 20);
    color:whitesmoke;
    font-size: 1rem;
    font-weight: bold;
}
.btn-esp{
    background-color:rgb(173, 65, 173);
}
.btn:hover{
    background: pink;
}