*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body{
    background-color: purple;

}
.container{
    height: 100vh;
    width: 100vw;
    display: grid;
    place-items: center;
}

.Calculator{
    height: auto;
    width: auto;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 30px black;
}
#display{
    height: 150px;
    width: auto;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    font-size: 30px;
    margin-bottom: 20px;

}

button{
height: 60px;
width: 60px;
border: 0;
margin: 5px;
font-size: 20px;
cursor: pointer;    
}

.btn-equal{
    height: 130px;
    background-color: darkgray;
    color: black;

}


.Calculator button#clear{
    background-color: red;
    color: white;
}

.Calculator button.btn-operator{
    background-color: black;
    color: white;

}
.Calculator button.btn-number{
    background-color: black;
    color: white;

}