HTML comments help organize your code and are ignored by the browser when rendering the page.
<!-- This is a single-line comment -->
<!-- This is a multi-line comment. It can span over multiple lines. Useful for writing long explanations. -->
<!-- TODO: Add navigation menu here later --> <!-- NOTE: This section will be visible to admin only --> <!-- FIXME: This needs to be fixed for small screens -->
<!--[if IE]> <p>This is Internet Explorer specific content</p> <![endif]-->
<!-- Start: Sidebar -->
<div class="sidebar">
<p>Sidebar content</p>
</div>
<!-- End: Sidebar -->
<!-- <!-- Invalid --> -->
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