Book Image

Mastering Bootstrap 4

Book Image

Mastering Bootstrap 4

Overview of this book

Bootstrap 4 is a free CSS and JavaScript framework that allows developers to rapidly build responsive web-interfaces. Right from the first chapter, dive into building a customized Bootstrap website from scratch. Get to grips with Bootstrap’s key features and quickly discover the various ways in which Bootstrap can help you develop web-interfaces. Then take walk through the fundamental features, such as its grid system, helper classes, and responsive utilities. When you have mastered these, you will discover how to structure page layouts, use forms, style different types of content and utilize Bootstrap’s various navigation components. Among other things, you will also tour the anatomy of a Bootstrap plugin, creating your own custom components and extending Bootstrap using jQuery. Finally, you will discover how to optimize your website and integrate it with third-party frameworks. By the end of this book, you will have a thorough knowledge of the framework’s ins and outs, and be able to build highly customizable and optimized web interfaces.
Table of Contents (15 chapters)
Mastering Bootstrap 4
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface

Customizing plugins


While there are many plugins to customize, we will choose two that we have already come across in the previous chapters:

  • Bootstrap's jQuery alert plugin

  • Bootstrap's jQuery carousel plugin

Customizing Bootstrap's jQuery alert plugin

The alert plugin, as we have seen, is exceedingly simple. The alert is rendered on the page, displaying a message, and the only functionality it has is the ability to close and disappear when a user clicks on a certain element.

To demonstrate how to customize or extend a plugin, in this case alert, we are going to keep it very simple. We are going to add an extra bit of functionality, when a user clicks on a certain element, the alert will minimize. We also, obviously, want to give the user the ability to expand the alert when it is in its minimized state. To do this, we need to extend both the JavaScript and the styling of alert.

Before we get to the coding of the plugin functionality and styling, let's put together the markup for an alert on the...