Do tables hurt SEO?
But a website that is done entirely in tables is not going to be mobile friendly. If your site isn't mobile friendly, you're going to have a higher click back rate (let's not talk about bounce rate) as mobile visitors get turned off and go back to the search engine for the next result.
Are HTML tables outdated?
Tables for Layout Are Invalid in HTML 4.01
You should only use tables for tabular data, and tabular data generally looks like something you might display in a spreadsheet or possibly a database. However, HTML5 changed the rules and now tables for layout, while not recommended, are considered valid HTML.
How do you beautify a table in CSS?
Add a bottom border to each row for separation. Add a lighter background to every second row to help readability. Add a dark border to the very last row to signify the end of the table.