body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    padding-top: 50px;
}

.box {
    border: 1px solid #4a7bb0;
    padding: 20px;
    width: 380px;
}

.input-group {
    margin-bottom: 10px;
}

.input-group label {
    font-size: 14px;
}

.input-group input {
    width: 150px;
    padding: 2px 5px;
}

.button-group {
    margin-bottom: 15px;
}

.button-group button {
    padding: 3px 8px;
    font-size: 13px;
    cursor: pointer;
    margin-right: 2px;
}

.result-group p {
    margin: 10px 0;
    font-size: 14px;
}