＊This function is used to:
1. Change the word size of browsing: If your browser can't support it, it is recommended that you use the toolbar at the top of the browser [View] → [Font] to adjust Word size.
2. Friendly printing: If your browser can't support it, you can use the shortcut key [Ctrl + P] or the toolbar [File] → [Print] at the top of the browser to print.