I frequently use tables in Obsidian to make comparisons, summarize information, display statistics, and even keep track of my blog posts. But Obsidian's basic tables look a bit plain.

Other than table styling, there are other cool HTML effects and CSS display website layouts you can add to your website. You can view the code for this exercise in its GitHub repo.

AFAIK, CSS cannot affect the DOM tree. So, display: none just says the element should not be displayed, not that it should cease to exist. Style/structure separation and all that.