.Calculator{
    display: flex;
    height:100vh;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

#calc{
    max-width: 270px;
    max-height: 900px;
    background: black;
    padding: 10px;
    border-radius: 10px;
}

#display{
    width: 100%;
    height: 40px;
    background: white;
    outline: none;
    border: none;
    margin-bottom: 10px;
    font-size: 40px;
    color: black;
}

#buttons{
    display: grid;
    grid-template-columns:repeat(4, 60px) ;
    grid-template-rows:repeat(5, 60px) ;
    gap: 10px;
}

button{
    background: white;
    color: black;
    border: none;
    outline: none;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
}

button:hover{
    background: red;
    opacity: 1;
}
button:active{
    background: red;
    opacity: 1;
}