#glass-weight-calculator {
    max-width: 400px;
    margin: 0 auto;
}

#glass-weight-calculator h3 {
    text-align: center;
    margin-bottom: 20px;
}

#glass-weight-calculator label {
    display: block;
    margin-bottom: 5px;
}

#glass-weight-calculator select, #glass-weight-calculator input {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
}

#calculate-btn {
    width: 100%;
    padding: 10px;
    background-color: #0073aa;
    color: white;
    border: none;
    cursor: pointer;
}

#calculate-btn:hover {
    background-color: #005177;
}

#result {
    text-align: center;
    margin-top: 20px;
}

#calculated-weight {
    font-size: 18px;
    font-weight: bold;
}