Well making an npc looking nice attracts the players and make them like your server so i will post some basic codes you can use for your npcs
1.Putting Your Text in wherever u want in the html
<DIV ALIGN="right">
Right<p>
I can align lots of text with the division tag!
</DIV><p>
This Will Put The text to the right of the page
for centre put <DIV ALIGN="left">
2.Putting Paragraphs
You can Eaither use <P> Or <BR>
3.Use Fonts
having a colored text is nice so we start
[font]
[font SIZE="4" COLOR="here put the html color"]
These will set the text size and the color
[/font]
4.Creating Lists
<UL>
<LI>Cool!
<LI>Free!
<LI>Informative!
</UL>
This Will Show in the text with a ball before the word i think you know what i mean
I hope you like my guide
Don't forget to save the files as .html ofc