When I'm browsing the Showcase, I scroll to the bottom and I'm looking for the "Load More" button, but if my pointer is over a link area and that is almost always the button is covered by Chorme link preview.

I think that's a good case to be bold. The button should be big centered and surrounded by white space.

Hey Greg 馃憢, thanks for reporting this!
almost always the button is covered by Chrome link preview
This worked in the past, it seems the margin styles that prevented this (and indented the button correctly) broke during a recent merge.
I think that's a good case to be bold. The button should be big centered and surrounded by white space.
I agree, and I really like your mockup鈥攎uch better! Let's do this!
There you go. Hope I did everything correctly :)
Fixed and merged in #7353
Whoops, forgot to close this! Thanks again @Manoz!