body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 50px;
}

.calculator {
    display: inline-block;
    border: 1px solid #000;
    padding: 20px;
    border-radius: 10px;
}

.display {
    width: 100px;
    height: 40px;
    margin: 0 10px;
    font-size: 24px;
    text-align: right;
    padding-right: 10px;
}

.buttons {
    display: inline-block;
}

.buttons button {
    width: 100%;
    height: 50px;
    font-size: 24px;
}

.meme {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 500px;
    height: 0;
    background-image: url('img/image.png');
    background-size: cover;
    background-position: center;
    display: none;
}

.header {
    font-size: 36px;
    margin-bottom: 10px;
}

.description {
    font-size: 14px;
    margin-bottom: 20px;
}

@media (max-width: 600px) {
    .display {
        width: 80px;
        height: 30px;
        font-size: 20px;
    }

    .buttons button {
        height: 40px;
        font-size: 20px;
    }

    .header {
        font-size: 28px;
    }

    .description {
        font-size: 12px;
    }
}