--- title: What's the difference between :root and html in CSS? shortTitle: :root vs html type: story language: css tags: [layout,selector] author: chalarangelo cover: tree-roots excerpt: The CSS selectors used to target the root element of an HTML share some similarities, but they also have some differences. dateModified: 2022-05-22T05:00:00-04:00 --- CSS has two ways to target the root element of an HTML document - the `:root` pseudo-class and the `html` selector. While these are very similar to each other, they have a couple of differences you should know. ### Selector specificity The `:root` selector has a higher specificity than the `html` selector. This is because `:root` is a pseudo-class selector, while `html` is a type selector. ```css :root { background-color: red; } html { background-color: blue; } /* The HTML document's root element will have a red background-color. */ ``` ### Targeting the root element CSS can be used to style other types of documents, apart from HTML. This is where the `:root` element comes in to play, allowing you to style the root element of a document. This can be especially important when styling SVG documents, where the `html` selector will not work.