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Bootstrap 4 is the latest version of Bootstrap, which is the most popular HTML, CSS and JavaScript framework for developing responsive and mobile websites first. Bootstrap 4 is completely free to download and use!

Bootstrap 4 Source CSS files converted to SCSS.

Bootstrap 4 has 5 grid systems (.col-, .col-sm-3, .col-md-3, .col-lg-3, .col-xl-3). Bootstrap 4 has removed the x from the lowest break point. Therefore, (col-) covers all devices.

Bootstrap 4 has changed the offset class (offset-md-4)

Difference Between Bootstrap 4 and Bootstrap Image Responsive

Bootstrap 3 Image: .In Bootstrap 3 we are used this (.img-responsive) class for responsive image.
Bootstrap 4 Image: it has changes the class for responsive image (.img-fluid).

Bootstrap 4 Form Control

Bootstrap 4 has changed to (.form-control-lg) and (.form-control-sm) to increase and decrease the input size. Bootstrap 4 has add, delete and rename classes.

Why use Bootstrap 4?

  • It’s open source
  • Easy to get started
  • Great grid systems
  • Responsiveness
  • Mobile First
  • Consistency
  • Browser support

Using CDN

<!-- Compiled and Minified Bootstrap4 CSS -->
<link rel = "stylesheet" 
   href = "https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
   integrity = "sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" 
   crossorigin = "anonymous">

<!-- jQuery Library -->
<script src = "https://code.jquery.com/jquery-3.2.1.slim.min.js" 
   integrity = "sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" 
   crossorigin = "anonymous">
</script>

<!-- Popper -->
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" 
   integrity = "sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" 
   crossorigin = "anonymous">
</script>

<!-- Compiled and Minified Bootstrap4 JavaScript -->
<script src = "https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" 
   integrity = "sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" 
   crossorigin = "anonymous">
</script>
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About Raka Rocks

Hi, My self Raka Rocks. I am web designer and Front End Developer total 8 year exp. in this fields. I am a continuous blogger and has blogged on different topics. He loves to surf the Internet and always tries to get new ideas about new technologies and innovations and share this excellent information with all technology lovers.

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