The iframe srcdoc Attribute
I was working on a web page generation program recently and was looking for a way to present different versions of the same page with slight differences in the markup and styles. Although using the iframe element came to mind I wasn't keen on rendering out lots of different versions of the page and then referencing them individually in each iframe.
Using The view-source Protocol
If you are running FireFox (or Chrome) then there is a handy little short cut you can use to view the source of a page you are looking at. If you add the text view-source on any web address then you will see the equivalent of viewing the source of a page (perhaps by pressing Ctrl+u).
HTML Meta Refresh
To get a webpage to refresh every few seconds you can use a meta tag with the attribute http-equiv and a value of refresh. The number of seconds to delay can be put into the content attribute. This meta tag (as will all meta tags) goes into the head section of the document.
Here is an example that refreshes the page every 2 seconds.
Linking An RSS Or Atom Feed to a HTML Document
Adding a hyper link for an RSS or Atom feed on your web page works, but that's not all you can do. By adding a link to the head section of the page you can allow your users an alternative method of picking up your feed.
To add an RSS feed use this.
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