This is similar to what I did last night with the More buttobn PNG file. I have the same file in a Panel Pane for a View that I put together. And I want it to go to a completely custom URL that links to a searchable View of the same aggregator items.
First, I need to get the link and the text on the screen. Since it is View, there are better, more flexible options than there were on the Block that I was working with last night. I decided to add a Link via the Header part of the View as seen below. Because there is a text area option for the header and you can place full HTML in there, I was able to add all of the styling elements directly in the header. So, it is really Inline CSS. Which is fine for here because I want complete flexibility over the element. I added positioning elements, opacity and a title to the More text and I now have my link right on the More PNG file button.