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CSS stands for cascading style sheets. It is a term for style sheet language, which designers use for defining the formatting and appearance of HTML files. When you download your preferred WP theme, you’ll find that it has a style.css file, which contains the rules for how WordPress pages will be formatted. HTML elements can be styled in CSS to indicate what different tags mean in different sections of the site. You might want the same header size to display differently in a blog post versus a page, and you could use CSS to achieve that. You don’t need to know CSS to be able to work with wp