Markdown Styling Not Rendering

I have been running some tests at work and was asked to put my results in a markdown file. I am using tables to display my results. I didn’t like how it displayed the tables stacked on top of each other making a long list of tables. I decided then I would put the tables in a div and style them with display:inline-block and then wrap each set of tables with a container div. This looked exactly how I wanted it in my Atom editor with a markdown viewer extension, but when I pushed it to GitLab it would render as if I didn’t add any of the styling’s. Any ideas or solutions would be greatly appreciated.