.calculadora{
    border: 2px black solid;
    margin: 10px;
    padding: 20px;
    padding-bottom: 5px;
    background-color: deepskyblue;
    height: 250px;
    width: 600px;
    
}

footer{
    font-size: small;
}


#botones{
    display: flex;
    justify-content: space-around;
}

#OperacionesUnitarias{
    border: 1px black solid;
    padding: 5px;
    padding-top: 0px;
    background-color: cadetblue;
}

#OperacionesBinarias{
    border: 1px black solid;
    padding: 5px;
    padding-top: 0px;
    background-color: cadetblue;
}

#operacionesCSV{
    border: 1px black solid;
    padding: 5px;
    padding-top: 0px;
    background-color: cadetblue;
}