One way to get to this is to start with almost-'94 HTML:

  <!doctype html>
  <html>
      <head>
          <title>Some Topic</title>
      </head>
      <body>
          <h1>Some Topic</h1>

          <p>Information goes here.</p>

          <p>Information goes here.</p>

          <p>Information goes here.</p>

      </body>
  </html>

Then add a little non-'94 CSS styling.

If you decide to add an off-the-shelf wad of CSS, like Pico.css, consider hosting it alongside your HTML (rather than turning it into another third-party dependency and CDN cross-site surveillance tracker). Minified, and single-request.