Make a copy of your HTML page and use the Bootstrap UI Toolkit to give the copy a typical, professional look. Try
to make it look like a very different take on the same content. Replace the link to
your custom CSS with the Bootstrap CDN link (found on the Quick Start page) and use Bootstrap classes to style your page.
Bootstrap v5
Quick Start. Pay
attention to the sections in the left-side navigation bar for
Layout,
Content,
Forms,
Components, and
Utilities.