* {
    box-sizing: border-box;
}

.calculator {
    height: 600px;
    width: 400px;
    /* background-color: black; */
}

.text-area {
    background-color: black;
    color: white;
    height: 15%;
    font-weight: lighter;
    font-size: 35px;
    font-family: monospace;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
    
    padding: 8px;

}

.button-area {
    background-color: black;
    height: 85%; 
    display: flex;
    flex-wrap: wrap;
    /* justify-content: space-evenly; */

}


button {
    height: 20;
    width: 25%;
    font-size: xx-large;
    font-weight: bolder;
    /* border: black solid 1px; */
    
}

.clear-button {
    width: 50%;
}

.backspace-button {
    width: 25%;
}

.zero {
    width: 75%;
}

.equals {
    width: 25%;
}

.operation {
    background-color: #df974c;
}