I like the build. It fits Volibear. The second make me chuckle because my friend did the triple Warmog's Armor on Nautilus and had like 6.2K health. Also the math section is good it explains what it has to well and I like that you discovered colored text.

Constructive Criticism: (Not really criticism, more like suggestions)
- Add more sections. For example, situational items, farming, how to lane, benefits of building straight tank, ability sequence, descriptions of abilities, etc.

- Read Jhoijhoi's Guide to Making a Guide (rated 93%) for more information on how to make this guide more appealing and to have coding in it.

-Coding examples {icon= Heal size=48} and {{Heal}}. This is for the Summoner Spell Heal. Take that and replace {} with [] to get and Heal.

-Try to come up with a creative name for your guide so that it gets the attention of people viewing the guides.

Overall a good start so +1 for the effort and if you do the things I have listed above and check out other guide rated above 60% to see what you could add then you should definitely be good to go on this guide!!