: This allows you to include the contents of one file into another file on your server. It's useful for maintaining common elements like headers, footers, or navigation across multiple pages.

– Convert to <iframe> or JavaScript fetch, but that changes functionality.

What happens when you try to view such a thing today?

Frames were a layout system that divided the browser window into independent panes. A typical indexframe.shtml would define a <frameset> (rows/columns) and reference frame src="navigation.html" and frame src="content.html" .

Ensure your virtual or file paths in the include tags point to the exact location of your navigation or header files.

.image-list list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center;