I hope someone can help, HTML validation is telling me line 176 has an error, just one of a few I have on the page, at the moment I'm only interested in that error. The iframe is nested within a DIV, the DIV is closed, the iframe is closed ?

[Link]

Here's a problem:

<div id="tutorials" class="subp_2"><img src="http://nextact.mit.edu/assets/images/close.png" alt="close">
<div class="t"><iframe class="tpage" src="http://www.thecreativesheep.ca/webdesignprojects/largeprojects/cs_tutorials/tutorialpage_WIP.htm"</iframe></div>
</div>

There is a missing '>' in the opening <iframe> tag right after the URL, should be:

<div id="tutorials" class="subp_2"><img src="http://nextact.mit.edu/assets/images/close.png" alt="close">
<div class="t"><iframe class="tpage" src="http://www.thecreativesheep.ca/webdesignprojects/largeprojects/cs_tutorials/tutorialpage_WIP.htm"></iframe></div>
</div>

Fixing the above gets rid of all the errors apart from the one at Line 114, which needs an image source and alt text to be specified.

thanks !