
.calc{
    width:500px;
    height: 650px;
    background: cadetblue;
    margin-left: 400px;
    
}
#screen{
    width: 90%;
    margin-top: 25px;
    height: 60px;
    margin-left: 30px;
    pointer-events: none;
}
.button{
    width:50px;
    height:50px;
    margin-top: 40px;
    margin-left: 40px;
    color:black;
    font-size: large;
}

.row{
    padding-left: 50px;
}