.calculator {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 20px;
    width: 300px;
    margin: 50px;
    margin-left: auto; 
    margin-right: auto; 
    padding-bottom: 70px;
    max-height: 200px;
    overflow: hidden;
}

input[type="number"] {
    width: calc(100% - 20px);
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

input[type="number"]:focus {
    border-color: #007bff;
    outline: none;
}

.buton {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #0056b3;
}

.calculator p {
    margin-top: 15px;
    font-size: 18px;
}