Introduction to Bootstrap CSS

Bootstrap is a popular front-end framework that helps developers quickly build responsive and mobile-friendly websites. It provides a wide range of pre-built CSS classes and components to enhance the appearance and functionality of web pages.

To use Bootstrap in your project, you need to include the Bootstrap CSS file in your HTML document. One way to do this is by adding the following link tag in the head section of your HTML file:

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">

This link tag specifies the location of the Bootstrap CSS file. In this case, it references the bootstrap.min.css file located on the MaxCDN server. The href attribute contains the URL, and the rel attribute defines the relationship between the current document and the linked resource (stylesheet in this case).

Including this CSS file allows your HTML elements to inherit Bootstrap's styles, giving your website a consistent and visually appealing look. It also enables the use of Bootstrap's responsive layout features and extensive library of UI components, such as navigation bars, buttons, forms, and grids.

You can further customize the appearance of your website by overriding or extending Bootstrap's CSS classes with your own stylesheets or additional classes.

Remember to include the Bootstrap CSS link before any other custom stylesheets or scripts, as the order of inclusion can affect how styles are applied to elements.

By adding the Bootstrap CSS file to your project, you can leverage Bootstrap's powerful styling capabilities to build professional-looking websites more efficiently.

For more information and detailed documentation about Bootstrap, please refer to the official website: https://getbootstrap.com/