Stands for “Cascading Style Sheet.”

CSS is a mode sheet language used for formatting content material in HTML webpages. CSS type sheets can outline the looks and formatting of textual content, tables, and different parts individually from the content material itself. Styles could also be discovered inside a webpage’s HTML file or in a separate doc referenced by a number of webpages.

CSS helps net builders create a uniform look throughout a whole web site. Instead of formatting the looks of every desk and block of textual content in a webpage’s HTML code, a mode is outlined as soon as in a CSS type sheet. Common HTML formatting tags, like <h2>, <sturdy>, and <em> can have customized formatting outlined in a CSS file; customized kinds will also be created and utilized to textual content, images, and tables. Once a mode is outlined, it may be utilized by any web page that hyperlinks to the CSS file.

By separating a webpage’s content material from its formatting, CSS makes it simple to update kinds throughout a number of pages without delay. For instance, if you wish to enhance the physique textual content measurement from 10pt to 12pt throughout dozens of separate HTML pages, you solely want to vary the type as soon as within the CSS file. The textual content measurement adjustments for each instance of that type on any webpage using that type sheet.

Some net browsers embrace a reader mode that robotically adjustments textual content formatting from the webpage’s default to a particular built-in stylesheet optimized for straightforward studying.

NOTE: The word “cascade” refers back to the precedence scheme utilized by CSS when a number of type guidelines overlap. User-defined CSS overrules kinds utilized on to an HTML tag, which overrule any kinds outlined throughout the HTML doc’s header, which overrule any kinds outlined in an exterior CSS file.

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