Page content with tables alignment

Hello, I am using Adonis Pro WordPress theme and I'm trying to figure out where edit alignment for tables on a page. Essentially I am creating pages with tables and everything is left aligning. I would like some of the cells in the table to be Left aligned, some Center aligned and some Right aligned. I am not seeing the correct section in the code in the style.css file. Perhaps I am looking in the wrong file? Thanks for your help!