Book Image

Bootstrap 4 By Example

Book Image

Bootstrap 4 By Example

Overview of this book

Bootstrap is a free, open source collection of tools that helps developers create websites or web applications. It provides a faster, easier, and less repetitive solution to designing and building applications. Before Bootstrap’s release, it was necessary to import a variety of libraries into your project that offered different components and features for web interface development. Plus with the increased popularity of smartphones there were lack of libraries that could handle the responsiveness of a web page. Bootstrap‘s existence let it quickly become famous as a front-end framework that offered a wide set of tools from page grid up to components that render a web page in the best possible way for any device. This book will be a tutorial covering various examples as well as step-by-step methodology to create interesting web applications using Bootstrap and to understand the front-end framework to its core. We begin with an introduction to the Bootstrap framework and setting up an environment to build a simple web page. We then cover the grid system, basic Bootstrap components, HTML elements, and customization components for responsive and mobile first development. This is presented by creating a beautiful Landing page sample. You will also learn how to create a web application like Twitter by using the full set of components offered in the framework. Finally, you will learn to create a dashboard web app, using Bootstrap to its finest potential including component customizations, event handling, and external library integration. All these examples are explained step-by-step and in depth, while covering the versions 3 and the most recent version 4 of Bootstrap. So, you will be in the state of the art for front-end development. By the end of this book, you will be familiar with the development of a plugin for the framework and Bootstrap’s world which is popular for fast paced front-end web development, used in countless projects all over the world, and now yours.
Table of Contents (18 chapters)
Bootstrap 4 By Example
About the Author
About the Reviewer

How to debug different viewports at the browser

Let's see how to debug different viewports using the Google Chrome web browser. Even if you already know that you can skip this section, it is important to refresh the steps for doing that.

First of all, open the current landing page project that we will continue working with in this chapter in the Google Chrome browser. In the page, you need to select the Developer tools option. There are many ways to open this menu:

  • Right-click at any place on the page and click on the last option Element inspector

  • Go to the setting (the sandwich button at the top-right of the address bar), click on More tools, and select Developer tools

  • The shortcut to open it is Ctrl + Shift + I (cmd for OS X users)

  • F12 in Windows also works (this is an Internet Explorer legacy)

In the Developer tools, click in the mobile phone on the left of a magnifier, as shown in the following screenshot:

It will change the display of the viewport to a certain device and you can also set...