In Blackboard, the title of an assignment submission is black and it looks like an ordinary heading. When you mouse over it, the underline appears and it looks like a link. But if you just look at it, it’s not obvious that it is a link! In response to feedback, I’ve now changed the colour of my assignments to dark blue. (See example).
I’ve also added a textual note below the link to make it extra clear and I’ve provide a web link to the Blackboard help page on Assignment Submissions for students.
The blue in my link is a bit too light when compared to the attachments on the item, so if anyone knows what the CSS colour code for a link should be, I’d be grateful if you could add it to the comments.