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Style sheet (web development)
open-in-new
<p>date=March 2014}} </p> <p>A web style sheet is a form of <a href="/facts/Separation_of_content_and_presentation/TkjK5HxA">separation of content and presentation</a> for <a href="/facts/Web_design/1uNCN7qE">web design</a> in which the [[prog) of a [[webpage]contains the page's semantic content and structure, but does not define its visual layout (style). Instead, the style is defined in an external style sheet file using a <a href="/facts/Style_sheet_language/sAU6MR9u">style sheet language</a> such as <a href="/facts/Cascading_Style_Sheets/tA90XBQo">CSS</a> or]. This design approach is identifiedethodology in which a page's markup defined both style and structure. </p><p>The philosophy underlying this methodology is a specific case of <a href="/facts/Separation_of_concerns/Tx8jawNT">separation of concerns</a>. </p>