Firefox/Chrome debugger: visualise cell boundaries?

I wonder is there a way I'm not finding (and been unable to fond searching on-line) to visualise the cell boundaries on HTML tables in either the Firefox and/or the Chrome debuggers? I mean short of tweaking the CSS, just a quick visualisation of where they lie?

Of course if a CSS tweak is the only way I'd also be interested in what the minimal CSS tweak might be, to, given a table of a particular class, just quickly (temporarily) see thin lines marking all the boundaries between cells and around the table.

https://stackoverflow.com/questions/65866537/firefox-chrome-debugger-visualise-cell-boundaries January 24, 2021 at 10:09AM