calculator.css

.body{
    height: 395px;
    width: 400px;
    background-color:#4e4f4d;
    margin-left:31%;
    margin-top:3%;
    padding-top: 20px;
    border-radius: 10px;
    border: 5px;
    border-style: solid;
}
    
#screen{
    height:50px;
        width:360px;
        background:#f4f4f4;
        margin-left:20px;
        border-style: solid;
        border-color: rgb(39, 34, 34);
        border-radius: 10px;
        background-color: rgb(143, 175, 143);
        pointer-events: none;
        font-size: large;
        

}
.btn{
    width: 70px;
    height: 50px;
    margin-left:21px;
    margin-top:13px;
    border-color: rgb(39, 34, 34);
    border-radius: 10px;
    background-color: rgb(91, 112, 136);
    font-weight: bold ;
}





#clr{

    width:70%;
    height:60px;
    margin-left:23px;
    margin-top: 9px;
    border-color: rgb(39, 34, 34);
    border-radius: 10px;
    background-color: rgb(187, 63, 63);
}