Posted 26 June 2012 - 06:41 AM
You inserted an image into a code tag it appears (or, the 'html' special bbcode tag, which is not used to parse HTML - it is used to display HTML with syntax highlighting). Code tags specifically do not parse the HTML or bbcode.
If you want to use HTML in articles, you need to enable it for your group, and for the article body field in the ACP ( Other Apps -> Content -> Article Fields). Then, you just type out the HTML you want to use into the editor, but note that the editor buttons are disabled when HTML posting is enabled.