Bootstrap Introduction - Introduction to Bootstrap
What is Bootstrap ?
- Bootstrap is a free front-end framework for faster and easier web development.
- Bootstrap includes HTML and CSS based design templates for typography, forms, buttons, tables, navigation, modals, image carousels and many other, as well as optional JavaScript plugins.
- Bootstrap also gives you the ability to easily create responsive designs.
Create a new index.html
Sample Code
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Bootstrap demo</title>
</head>
<body>
<h1>Hello, world! </h1>
</body>
</html>
Output
Include Bootstrap’s CSS and JS
- Another way to include Bootstrap's CSS and JS in your web page is to use a CDN (Content Delivery Network), which allows you to link to the files hosted on a third-party server. This method can be faster and easier than downloading and hosting the files yourself.
- To use a CDN for Bootstrap, add the following code to the <head> section of your HTML document:
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-rbsA2VBKQhggwzxH7pPCaAqO46MgnOM80zW1RWuH61DGLwZJEdK2Kadq2F9CUG65"
crossorigin="anonymous">- And add the following code at the end of the <body> section of your HTML document:
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"
integrity="sha384-kenU1KFdBIe4zVF0s0G1M5b4hcpxyD9F7jL+jjXkk+Q2h455rYXK/7HAuoJl+0I4"
crossorigin="anonymous"></script>- Note that when using a CDN, you don't need to download or host the files. Instead, your web page will load the files from the CDN server.
Sample Code
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Bootstrap demo</title>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css
/bootstrap.min.css" rel="stylesheet" integrity="sha384-rbsA2VBKQhggwzxH7pPCaAqO46MgnOM80zW1RWuH61DGLwZJEdK2Kadq2F9CUG65" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-kenU1KFdBIe4zVF0s0G1M5b4hcpxyD9F7jL+jjXkk+Q2h455rYXK/7HAuoJl+0I4" crossorigin="anonymous"></script>
</head>
<body>
<h1>Hello, world!</h1>
</body>
</html>
Output
Bootstrap 5
- Bootstrap 5 uses HTML elements and CSS properties that require the HTML5 doctype.
Sample Code
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap 5 Example</title>
<meta charset="utf-8">
</head>
</html>
Output
