Getting a Link to Display Correctly
Link size does not change with rest of text
If you resize the body text of a tool tip, and that text includes a link, the link will not resize with the surrounding text. (see screenshot)
In order to get around that, you need to add custom code to the <a> element. Here is code example that results in the bottom screenshot:
<p style="text-align: center;"><span style="font-size:20px">Please continue to access training through the <a href="https://learningexchange.ea.vanderbilt.edu/" style="color:#2f78cb; font-size:20px" target="_blank">Learning Exchange</a> until you receive detailed instructions from your instructor.</span></p>

Example of link not resizing with surrounding text.

Example of link resizing with custom code applied.