body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.calculator {
    text-align: center;
    border: 2px solid #333;
    border-radius: 10px;
    padding: 20px;
}

#display {
    width: 80%;
    margin-bottom: 20px;
    padding: 20px;
    font-size: 18px;
}

.buttons {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

button {
    padding: 17px;
    font-size: 18px;
    background-color: black; /* Default background color for buttons */
    color:aliceblue;
    border-radius: 50%; /* Apply rounded corners for oval shape */
}
button:hover {
    background-color:grey;
}
.operator {
    background-color: orangered; /* Background color for operator buttons */
    color: white;
    border-radius: 50%; /* Apply rounded corners for oval shape */
}

.operator:hover {
    background-color: #F89880; /* Change background color on hover */
}