body {
    margin: 0;
    justify-content: center;
    align-items: center;
     display: flex;
     min-height: 100vh;
    background-color: black;

}
@media (max-width: 480px) {
    
    
}
.box-frame {
    background-color: black;
    border-radius: 20px;
    
    width: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: 10px 5px 10px rgb(148, 0, 0), -10px -5px 10px rgb(0, 49, 98);
}
.box-output {
    height: 28px;
    padding: 15px 18px;
    margin: 5%;
    margin-top: 7%;
    border: grey solid 1px;
    border-radius: 10px;
    background-color: black;
    color: white;
    text-align: right;
}
#output {
    font-size: 1.5em;
    
}
.buttons {
    margin-left: 15px;
    padding: 33px;
    margin-bottom: 15px;
    background-color: black;
    border: none;
    color: white;
    border-radius: 5px;
    transition:  0.1s ease-out;
    font-size: 1em;
}
#blank {
    background-color: black;
    border: none;
}
#clear {
    padding-right: 30px;
    color: red;
}
#percent {
    padding-right: 30px;
    color: blue;
}

#divide {
    color: blue;
    
}
#plus {
    color: blue;
}
#minus {
    color: blue;
}
#multiply {
    color: blue;
}
#point {
    padding-right: 35px;
}
.buttons:active {
    background-color: grey;
}