button{
    width: 50px;
    height: 50px;
    border-radius: 50px;
    background-color: #ff0000;
}

#kays{
    display: grid;
    width: 300px;
    grid-template-columns: repeat(4, 1fr); /* 4 kolom */
  gap: 10px; /* jarak antar kolom */
}
#dispay{
    width: 275px;
    height: 50px;
    margin-bottom: 20px;
    border: 3px solid black;
    font-size: 25px;
}
#caulator{
    font-family: Arial, sans-serif;
    background-color: blue;
    max-width: 283px;
    padding: 10px;
}
#kays button{
    font-size: 30px;
    height: 50px;
}

                                                                        Mamang9090@