: If you're asking about viewing or linking to an index page or about features similar to iframes, you might be looking into how to dynamically include content on web pages.
: Making iframes responsive can sometimes be tricky, but it's doable with CSS. view indexframe shtml link
javascript:(function() var links = []; var frames = document.getElementsByTagName('frame'); for(var i=0; i<frames.length; i++) try var frameDoc = frames[i].contentDocument; var frameLinks = frameDoc.querySelectorAll('a'); for(var j=0; j<frameLinks.length; j++) links.push(frameLinks[j].href); : If you're asking about viewing or linking
<a href="/contact.shtml">Contact</a> (Works from every directory on your site) var frames = document.getElementsByTagName('frame')
: Leans into the "computer terminal" vibe of .shtml files.