What Are Cascading Style Sheets (CSS)?

Written by Caitlin Davidson

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Cascading Style Sheets Defined

Cascading Style Sheets also known as CSS, is a style sheet language used for describing the presentation of a document written in a markup language.  Simply, it describes how HTML elements are to be displayed on screen, paper, or in other media. These specifications could include:

  • Page layouts
  • Colors
  • Fonts 

CSS is written in simple, plain text through a text editor or word processor on a computer. There are three main ways to add that CSS code to your HTML pages including:

  • External
  • Internal
  • Inline

CSS is independent of HTML and can be used with any XML-based markup language.

In Data Defined, we help make the complex world of data more accessible by explaining some of the most complex aspects of the field.

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