#standard-calculator {
    display: inline-block;
    text-align: center;
    font-family: Arial, sans-serif;
}

#standard-calculator input[type="text"] {
    width: 100%;
    margin-bottom: 5px;
    padding: 5px;
    text-align: right;
    font-size: 18px;
    border: 1px solid #ccc;
}

#standard-calculator button {
    width: 100%;
    height: 40px;
    margin-bottom: 0;
    font-size: 18px;
    background-color: #f0f0f0;
    border: 1px solid #ccc;
}

#standard-calculator button:hover {
    background-color: #e0e0e0;
}

#standard-calculator table {
    width: 100%;
    border-collapse: collapse;
}

#standard-calculator td {
    padding: 0;
}

.calculator-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}