Assuming you already imported Bootstrap CSS and JS in your page, simply download css/havokui.css and import it in your webpage. It's that simple.
I make a lot of websites with Bootstrap and I wasn't able to find any Bootstrap theme that I liked personally, so I said to myself: "Why not make a Bootstrap theme myself, that would be fun!!!!" And that's where I was wrong
If you find any visual bugs or would like to clean up the messy-ass code, you're always welcome to make a PR. Also you should open an issue if you find any sneaky visual bugs.
Hope you'll enjoy using this theme! 😁