In addition to normal frames, Iframes can also be used in TYPO3. Avoid Iframes if you want to keep your site accessible to visitors with very old browsers (Netscape 4.x); these browsers cannot interpret them.
In contrast to normal frames, Iframes do not divide the display window into several parts. They behave much more like graphics and are displayed on the inside of the page.
There is a separate extension available for dealing with Iframes. This makes it very easy to create and configure Iframes for your own page. There are actually two extensions, IFRAME and IFRAME2. Both work, but IFRAME2 is easier to use. In order to be able to use the extension after installation, you have to select General Plugin under New content element. This opens a window where you have to select IFrame2 under Plugin.
Now you can define the properties of the Iframe. The most important thing is the URL of the page that will be displayed in the Inline Frame. The HTML code generated...