Cool `kbd` abuse, but does this affect screen readers / accessibility, since `kbd` is meant to represent **textual user input**?
How about instead creating a page made with (semantic, accessible) HTML (which could be generated with the help of a markdown parser) for long guides which you want to style?
How about a table instead:
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|<th>Heading cell</th>|Left align|Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.|right align|Cool!

<h1><table><tr><th>Headings:<td>use HTML table syntax</h1>