Hi macanroe
1 + 2: In the backend settings of 'Video' module, you accidentally add a 'p' tag surround the video link so it broke the layout:
<p><a class="modal gkVideoBlock" href="//www.youtube.com/embed/Uh70E4hKTog" rel="{handler: 'iframe', size: {x: 640, y: 480}}">Take a tour</a></p>
I changed it back to correct the issue:
<a class="modal gkVideoBlock" href="//www.youtube.com/embed/Uh70E4hKTog" rel="{handler: 'iframe', size: {x: 640, y: 480}}">Take a tour</a>
3 - The same happened with 'N°1 Mexcian University' module below it.
About the 'Admissions' module, pls note that default Joomla editor strips out HTML tags so when you use default editor in custom HTML module or article content, it will strip some HTML tags like i tag in this module - which are icons. I updated again for you , below is default code of module on demo site:
<ul>
<li><a href="#"><i class="gk-icon-script"></i>How to apply</a></li>
<li><a href="#"><i class="gk-icon-calendar"></i>Deadlines</a></li>
<li><a href="#"><i class="gk-icon-marker"></i>Plan a visit</a></li>
<li><a href="#"><i class="gk-icon-education"></i>Find a major</a></li>
<li class="last-item"><a href="#">More details…</a></li>
</ul>