*,*::before, *::after{
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
    font-weight: normal;
}

body{
    padding:0;
    margin: 0;
    background: linear-gradient(to right, #5200af, #0cf0d1)
}

.CalculatorWrapper{
    display:grid;
    justify-content: center;
    align-content: center;
    min-height: 100vh;
    grid-template-columns: repeat(5,100px);
    grid-template-rows: minmax(120px,auto) repeat(5,100px);
}

.CalculatorWrapper > button{
    cursor: pointer;
    font-size: 2rem;
    border:1px solid white;
    outline:none;
    background-color: rgba(255,255,255, 0.75);
}

.CalculatorWrapper > button:hover{
    background-color: rgba(255,255,255, 0.9) ;
}

.spanTwo{
    grid-column:span 2;
}

.output{
    grid-column: 1/-1;
    background-color: rgba(0,0,0,0.75);
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    flex-direction: column;
    padding:10px;
    word-wrap: break-word;
    word-break: break-all;
    border: 2px solid white;
}

.output .previous-operand{
    color: rgba(255,255,255,0.75);
    font-size: 1.5rem;
}

.output .current-operand{
    color: white;
    font-size: 2.5rem;
}