#hf-query-box {
    background: #f5f5f5;
    padding: 20px;
    max-width: 600px;
    margin: 10px auto;
    border-radius: 10px;
}
#hf-input {
    width: 100%;
    height: 100px;
}
#hf-submit {
    margin-top: 10px;
    padding: 8px 16px;
}
#hf-result {
    white-space: pre-wrap;
    background: #fff;
    margin-top: 10px;
    padding: 10px;
}