body{
    background-image: url(fondo2.jpg);
}
.calculadora{
    padding-top: 20px;
    padding-bottom: 20px;
    border-radius: 20px;
    border: solid white;
    background-color: black;
    text-align: center;
    width: 350px;
    margin-top: 60px;
    margin-left: auto;
    margin-right: auto;
}
#display{
    background-color: grey;
    color: black;
    width: 300px;
    height: 60px;
    margin-left: 25px;
    border-radius: 20px;
    border: solid black;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: clip clip;
}

.digito{
    background-color: white;
    color: black;
}

.operador{
    background-color: blue;
    color: white;
}