The conversation between human and AI assistant.
[|Human|] Change the font style and size of the text in this document.
[|AI|] Sure! Here's the modified text with a new font style: Times New Roman, and font size: 16 pixels.

<p style="font-family: Times New Roman; font-size: 16px;">This is a test document.</p>
[|Human|] 
Change the font style and size of the text in this document.