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      Course
      Root

      CSS Tutorial

      This CSS tutorial is designed for beginners to navigate through the essentials and intricate aspects of CSS styling. Upon finishing this tutorial, participants will possess a comprehensive understanding of CSS, setting a solid foundation for further exploration and mastery. This guide aims to equip you with the skills necessary to transform your visions into visually appealing web designs, laying the groundwork for your journey towards becoming an accomplished web designer.

      root

      The :root CSS pseudo-class is designed to select the root element within a document's hierarchical structure. When applied to HTML, :root specifically points to the <html> element and behaves similarly to the `html` selector. Nonetheless, it's worth emphasizing that :root possesses greater specificity when compared to `html`. This selector includes all HTML elements or tags.
      Using :root can be advantageous when declaring global CSS variables.

      Syntax

      :root {
        // css declarations or property
        --main-color: blue;
        --secondary-color: white;
      }

      CSS root - Declaring Global CSS variables

      Here is the example that shows usage of :root 
      <html>
      <head>
      <style>
          :root {
            --main-color: blue;
            --secondary-color: white;
          }
          body {
            background-color: var(--main-color);
          }
          h1 {
            color: var(--secondary-color);
          }
      </style>
      </head>
      <body>
        <h1>Welcome to CSS Root Example</h1>
        <p>This is an example of using CSS root to define and use custom CSS variables.</p>
      </body>
      </html>

      CSS root - Styling Different Elements

      Here is another example that demonstrates the usage of the :root selector for styling different elements 
      <html>
      <head>
      <title>:root Example</title>
      <style>
         :root {
            --primary-color: #007bff;
            --secondary-color: #6c757d;
            --background-color: #fcfc90;
         }
      
         body {
            background-color: var(--background-color);
            color: var(--secondary-color);
            font-family: Arial, sans-serif;
         }
         h1 {
            color: var(--primary-color);
         }
         p {
            margin-bottom: 1rem;
         }
      
         .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 2rem;
            background-color: LightYellow;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
         }
         .button {
            display: inline-block;
            padding: 0.5rem 1rem;
            background-color: var(--primary-color);
            color: white;
            text-decoration: none;
            border-radius: 4px;
         }
      </style>
      </head>
      <body>
         <div class="container">
            <h1>:root Example</h1>
            <p>This is an example of using the <code>:root</code> selector to define global CSS variables.</p>
            <p>The primary color is set to <span style="color: var(--primary-color);">var(--primary-color)</span>.</p>
            <p>The secondary color is set to <span style="color: var(--secondary-color);">var(--secondary-color)</span>.</p>
            <p>The background color is set to <span style="background-color: var(--background-color); color: white;">var(--background-color)</span>.</p>
            <a href="#" class="button">Demo</a>
         </div>
      </body>
      </html>