# Bone Flow #020 Label Operation Guide

The formal guide is `DOC-0020`. Open it with “Operation guide DOC-0020” at the top of the test page.

For HTML Functional Class `bf-label`, use “Open HTML Functional Class guide” at the bottom of the page to jump directly to that section in DOC-0020.

Minimum usage:

```html
<div class="bf-label">Name</div>
```

Do not invent data attributes for detailed Properties. Use Property Editor or `BoneLabelHTMLClass.getInstance(host).update(...)`.