'''Cascading Style Sheets''' ('''CSS''') is a simple mechanism for adding style (e.g., colours, fonts, spacing) to {{Category-stubtag|web}}documents. Cascading Style Sheets is a style sheet language that allows authors and users to attach style (e.g., fonts and spacing) to structured documents (e.g., HTML documents and XML applications). By separating the presentation style of documents from the content of documents, CSS simplifies web authoring and site maintenance. {{SeeWp|CSS}} ;''External links*[[Categoryhttps:Web//www.W3.org/Style/CSS/ Cascading Style Sheets]— official home page, at W3.org*[https://www.W3.org/TR/css/ CSS Snapshot 2020 – W3C Working Group Note, 22 December 2020]— at W3.org