First Bootstrap Example

Add the HTML 5 doctype: Bootstrap uses HTML elements and CSS properties, so you have to add the HTML 5 doctype at the beginning of the page with lang attribute and correct character set.

Ex:

<!DOCTYPE html>  
<html lang="en">  
<head><meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
  
<title>Any title</title>  
</head>  
<body>  
//write code  
</body>  

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</html>  

Bootstrap is mobile friendly: Bootstrap 3 is designed to be responsive to mobile devices.

Mobile-first styles are part of the core framework of Bootstrap.You have to add the following <meta> tag inside the <head> element for proper rendering and touch zooming:

Note: The "width=device-width" part is used to set the width of the page to follow the screen-width of the device (vary according to the devices).

The initial-scale=1 part is used to set the initial zoom level when the page is first loaded by the browser.

Containers: container is used to wrap the site contents. There are two container classes.

The .container class provides a responsive fixed width container.
The .container-fluid class provides a full width container, spanning the entire width of the viewport.

Note: A container cannot be placed inside a container.

First Bootstrap Example (with responsive fixed width container)

<!DOCTYPE html>
<html lang="en">
<head>
  <title>This is a Bootstrap example</title>
  
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="../maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body>
<div class="container">
  <h1> First Bootstrap web page</h1>
  <p>Write your text here..</p> 
</div>

  <script src="../ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
  <script src="../maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</body>
</html>

Test it Now

Next TopicBootstrap Container

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First Bootstrap Example

Note: A container cannot be placed inside a container.

First Bootstrap Example (with responsive fixed width container)