When you hover over an operator or relationship, an info panel shows. The HTML and CSS structure and code for all of this is a bit messy. Changes that would be good:
Links don't make sense for any of the elements
Remove underlines from text
Restructure the code and use better CSS (instead of the HTML strong tag etc.)
When you hover over an operator or relationship, an info panel shows. The HTML and CSS structure and code for all of this is a bit messy. Changes that would be good: