• CSS- Cascade Style Sheet.
  • It is a style sheet language that is used to describe the format and look of a document written in markup language.
  • It is generally used with HTML to change user interfaces and the style of web pages.
  • It can also be used with any kind of XML documents including plain SVG, XUL and XML.
  • It is used along with HTML and user interfaces for many mobile applications and JavaScript in most websites to create user interfaces for web applications.

Example :

<!DOCTYPE html> 
<html>
<head>
<style>
      body {
                 background-color: lightblue;
             }
            h1 {
                 color: white;
                 text-align: center;
            }

           p {
              font-family: verdana;
              font-size: 20px;
            }
           </style>
          </head>
          <body>
          <h1>Welcome to kaashiv</h1>
          <p>Welcome to Wikitechy.</p>
</body>
</html>
Markup

Output :

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