Boostrap css, js, HTML

Bootstrap is the most popular HTML, CSS, and JavaScript framework for developing responsive websites.

Bootstrap helps your website design process go quickly based on available basic elements such as typography, forms, buttons, tables, grids, navigation, image carousels,…
Simply put, Bootstrap is a collection of large, reusable pieces of code, written in HTML, CSS, and JavaScript. Besides, this is also a front-end development framework that allows developers and designers to quickly build responsive websites. Basically, the Bootstrap framework helps save time writing CSS, so we will have more time to design websites. And best of all, it’s “Completely FREE”.

HISTORY OF BOOSTRAP DEVELOPMENT
Next, let’s learn a little about the history of Bootstrap to better understand what Bootstrap is. Bootstrap is a product of Mark Otto and Jacob Thornton at Twitter. Bootstrap’s original name was Twitter Blueprint. It was originally opened source on September 19, 2011 on GitHub to improve consistency between internal tools.
On January 31, 2012, Bootstrap version 2 was officially released. This new version has received support from Glyphicons as well as changes to some existing components. At the same time, this version also supports responsive web design (RWD) – that is, the layout of websites will automatically adjust to the characteristics of the device used (regardless of whether it is desktop, tablet or mobile).

August 19, 2013 marked the release of the next version – Bootstrap version 3. This version has redesigned the components to use flat design, and is more compatible with mobile devices. . Besides, Bootstrap 3 also has a completely new plugin system with namespaced events. Although Bootstrap 3 no longer supports Internet Explorer 7 and Firefox 3.6, there are still polyfills for these browsers.

It wasn’t until January 2018 that users could use the new version of Bootstrap – Bootstrap 4. And most recently, Bootstrap 5 on May 5, 2021. You can download the latest version of Bootstrap at the official website.

3 main files Bootstrap
To manage the user interface and functions of the website with the 3 main files below:

Bootstrap.CSS
Bootstrap.JS
Glyphicons

Bootstrap.css
Bootstrap.css is a CSS framework that helps you manage and arrange the layout of your website. HTML’s job is to help you manage the structure, while CSS handles the website layout. When you have these two components, you will save time on manual editing and can use CSS to create a unified and synchronized interface on the website faster.

Bootstrap.js
Bootstrap.js is considered the most important part because it contains JavaScript files. Developers often use JQuery to save time writing JavaScript.

Some basic functions of JQuery:

Easy to create Ajax: Thanks to the JQuery library, code written with Ajax can easily interact with the server and update content automatically.
jQuery Event Handling: Handle diverse events without cluttering HTML code with Event Handlers.
Create widgets using the JavaScript Plugins collection.
JQuery helps add and create some dynamic features to website content.
Bootstrap with HTML and CSS attributes works well but also requires the use of JQuery to create a more efficient Responsive design when using static CSS.

Glyphicons
For a website interface, icon sets are indispensable. Therefore, in Bootstrap, Glyphicons have been integrated for free. The free version is enough for you to synchronize icons on the website. If you want more modern and stylish icons, you can buy the iocn Premium set. Glyphicons will help make the website more lively and beautiful.

Easy to use
Regardless of whether you are an expert or a beginner, anyone can use Bootstrap quickly without any trouble. You don’t need to be an expert in web technology (HTML, CSS, JavaScript), you can still know how to use basic Bootstrap.

Easy customization
Users can easily edit Bootstrap CSS files if they feel dissatisfied. Besides, we can also combine them with existing designs, or complement each other’s functions… This is especially useful when users want to build a unique website, but it is not enough. Time to dig deep into CSS.

Besides, Bootstrap’s customization page also allows users to create their own themes. Or even customize the template by changing the values of variables.

Responsive web design
Creating a new page with Bootstrap will start by creating the grid layout for the page. The responsive grid system in Bootstrap is definitely considered a top priority, as more and more people are using mobile phones. So, any flaws in the front-end design will affect the authenticity of the website. This reduces the reputation of the website in the eyes of users.

As mentioned in the previous sections when we introduced Bootstrap, this framework is built in a “Mobile-First” direction, which means giving priority to mobile users. So its grid system can be divided into 12 equal columns, containing elements based on the size of the screen. Therefore, the front-end of the website will be more friendly to mobile users. Besides, classes in the grid system also help hide or display certain elements on specific devices.

Browser compatible
Bootstrap ensures compatibility of the framework with all versions and platforms of popular browsers today. Besides, Bootstrap developers also confirmed that they no longer support proxy browsers as well as old browsers. However, this does not affect the functionality of the Bootstrap framework.

Open source
Another outstanding feature of the Bootstrap framework is its open source code. Therefore, users can freely modify this framework according to the specific needs of their projects. Besides, Bootstrap itself also encourages developers to contribute to the source code so that the framework can develop more stably.

What is the structure and features of Bootstrap?
Bootstrap contains compiled and compressed JavaScript, CSS and fonts files. Additionally, Bootstrap is designed as modules. Therefore, Bootstrap can integrate with many open source platforms such as WordPress, Joomla, Magento, etc. In particular, Bootstrap brings many outstanding functions.

Allows you to access a “huge” library of elements used to create the interface of a complete website such as fonts, typography, forms, tables, grids,…
Allows you to customize the website framework before downloading.
Reuse repetitive elements on the website.
Bootstrap is integrated with jQuery. You just need to accurately declare the features in your web programming process.
Defining glyphicons helps minimize the use of images as icons and increases page loading speed.
Instructions for installing Bootstrap
To better understand what Bootstrap is, you must install Bootstrap for better testing. Next, let’s also learn the simplest and fastest ways to download Bootstrap. In the section below, Vietnix will introduce two popular ways to download Bootstrap to your hosting.

Download Bootstrap directly.
Through CDN Boostrap.
Download Bootstrap directly
Step 1: Click on the link below to download Bootstrap. It will be downloaded as a Zip folder, containing CSS and JS folders: https://getbootstrap.com/docs/4.0/getting-started/download/

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