Border when using grid background as a link

Hi,

I may have come across a small glitch in the theme, I’m not quite sure.

When I insert a grid row, and set a link for the entire background of each cell, there are borders between them, even though the grid is set to No Borders. The borders looks different depending on which browser I use.

Example:
3-cell-grid:
Chrome displays borders at the edges of the screen, and between the cells, but there are 1-2px differences between them.
Firefox displays no border between cell 1 and 2, but a very thin 1px border between cell 2 and 3.
Edge display the opposite of Firefox.

When I remove the links from the grid backgrounds, the borders between the cells disappear, and everything looks right..

I’ve attached a link to an image, that displays the issue in the Chrome browser, before I tried removing the background links.

Is this a glitch in the theme, or I am just doing something wrong? Can’t really figure out how to get this right. :)

Best regards,
Alex