Table of contents
1.
Introduction
2.
Bootstrap
3.
Helper Class
3.1.
Elements
4.
Color Helper Classes
4.1.
Program
4.2.
Output
5.
Positioning Helper Classes
6.
Visibility Helper Classes
7.
Text Alignment Classes
7.1.
Program
7.2.
Output
8.
Border Classes
8.1.
Program
8.2.
Output
9.
Frequently Asked Questions
9.1.
How can we start using Bootstrap?
9.2.
What are Bootstrap helper classes for floating the element?
9.3.
What are Bootstrap helper classes for adding shadow to the element?
9.4.
How can we use the components of Bootstrap?
9.5.
Whom does bootstrap help generally?
10.
Conclusion
Last Updated: Mar 27, 2024
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Bootstrap - Helper classes

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Introduction

Isn't Web Development engaging? Building new websites and using amazing animations, different APIsCSSAJAX, and BootstrapDon't be scared if you cannot grasp the hold of this vast development. Helper classes make users' lives easy by creating attractive web pages. There are classes for changing the text color and alignment. 

Bootstrap - Helper classes

 

Lets learn more of the bootstrap helper classes in this blog.

Bootstrap

bootstrap logo

Bootstrap is an open-source CSS framework making it easy to create attractive web pages with responsiveness. These CSS and javascript-based design templates for forms, buttons, and typography are contained in bootstrap.

Helper Class

Even though CSS is not the most impressive programming language, good CSS practices match well-established coding best practices. Developers created architectural ideas to improve CSS code by making it more modular, scalable, manageable, and reusable. The CSS code for Bootstrap is a prime illustration of these techniques.

Instead of continuing to style individual pieces, we can give the entire webpage a visual behavior. We're designing an architecture or system that does all the arduous work on our behalf. This is where the idea of helper classes comes into play.


As "an independent visual behavior rule," a helper class is used as an additional class on an object to assist save code repetition while still achieving the required behavior. It is not linked to any particular HTML element or collection of components. The concept becomes apparent when you require more behavior on the element.

Elements

Helper classes have several elements under them. Some of them are:

  • Color Helper Classes
    • Textual colors
    • Background colors
       
  • Positioning Helper Classes
    • Float regulators
    • Centering content
       
  • Visibility Helper Classes
    • Standard visibility helpers
    • Exotic visibility helpers
       
  • Text Alignment Classes
     
  • Border Classes 

Color Helper Classes

Color classes are used to change the color of the text for your web page and convey a specific meaning. It is similar to contextual color classes but applies color to the element's background to emphasize them. There are two types of color helper classes. One helps change the color of the background, and another change the color of the text.

Class type Utility
Textual colors
  • .text-primary 

It applies blue color to the text.

  • .text-secondary 

It applies grey color to the text.

  • .text-success 

It applies green color to the text.

  • .text-danger

It applies red color to the text.

  • .text-warning

It applies yellow color to the text.

  • .text-light

It applies a very light grey color to the text. 

  • .text-color-50

It applies color to the text with 50% transparency.

Background colors
  • . bg-primary 

It applies blue color to the background.

  • .bg-secondary 

It applies grey color to the background.

  • .bg-success 

It applies green color to the background.

  • .bg-danger

It applies red color to the background.

  • .bg-warning

It applies a yellow color to the background. 

  • .bg-light

It applies a very light grey color to the background. 

  • .bg-transparent

It applies transparency to the background.


Words like primary, success, info, warning, and danger describe a color type throughout Bootstraps.

Program

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1" />
		<title>Bootstrap Background and Color Classes</title>
		<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" />
		<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"></script>
	</head>
	<body>
		<div class="m-4">
			<p class="text-secondary">.text-secondary</p>
			<p class="text-warning">.text-warning</p>
			<p class="text-success">.text-success</p>
			<p class="text-white-50 bg-dark">.text-white-50</p>
			<div class="p-3 mb-2 bg-primary text-white">.bg-primary</div>
			<div class="p-3 mb-2 bg-danger text-white">.bg-danger</div>
			<div class="p-3 mb-2 bg-light text-dark">.bg-light</div>
			<div class="p-3 mb-2 bg-transparent text-dark">.bg-transparent</div>
		</div>
	</body>
</html>

Output

output

Positioning Helper Classes

This helper classes serve as assistants in positioning items correctly.

Class type Utility
Float regulators
  • .pull-left

Float an element in the left direction.

  • .pull-right

Float an element in the right direction.

  • .clearfix

Removes the float of any element.

Centering content
  • .center-block

Aligns the item in the center.

 

Visibility Helper Classes

There are 2 sets of class types under visibility helper classes; these class types help enhance the display.

Class type Utility
Standard visibility
  • .invisible
  • .hidden

Elements will be hidden from the screen

  • .show

Forces elements to be shown on screen.

Exotic visibility
  • .sr-only

Here, we can hide elements from all the devices except those with screen readers.

  • .text-hide

 

Text Alignment Classes

We have many class types for enhancing text alignment.

Class type Utility
Text Alignment
  • .text-start

It aligns the text to the left-hand side of the page.

  • .text-end

It aligns the text to the right-hand side of the page.

  • .text-center 

The text is aligned on the center of the page.

  • .text-wrap

Overflowing text is wrapped with the use of this class. 

  • .text-nowrap

This class prevents the wrapping of the text.

  • .text-break

To prevent the overflow, it breaks the long words.

  • .fw-light 

The element appears in light font-weight when we use this class.

  • .fw-normal

The element appears in normal font weight when we use this class.

  • .fw-bold

The element appears in bold font-weight when we use this class.

  • .text-decoration-none

This class removes all the decoration, such as underlining and italics of the text.

 

Program

<!DOCTYPE html>
<html lang="en">
   <head>
	  <meta charset="utf-8">
	  <meta name="viewport" content="width=device-width, initial-scale=1">
	  <title>Bootstrap 5 Text Classes</title>
	  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet">
	  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"></script>
   </head>
   <body>
	  <div class="m-4">
		 <h4>Text alignment</h4>
		 <p class="text-start">Left aligned text</p>
		 <p class="text-center">Center aligned text</p>
		 <p class="text-end">Right aligned text</p>
		 <p class="badge bg-primary text-wrap" style="width: 6rem;">Wrap text</p>
		 <p class="text-nowrap bg-warning" style="width: 12rem;"> No wrapping of text. This text overflows the parent.</p>
		 <p class="text-break">-----------------------------------------------------------------------</p>
		 <p class="fw-bold">Bold text.</p>
		 <p class="fw-normal">Normal text.</p>
		 <p class="fw-light">Light weight text.</p>
		 <p><a href="#" class="text-decoration-none">Text decoration removed.</a></p>
	  </div>
   </body>
</html>

Output

output

Border Classes

Border classes are used for styling the border and border-radius of elements like images, buttons, or any other element.

Class type Utility
Border Class
  • .border-start

It adds the border on the left side of the element.

  • .border-end

It adds the border on the right side of the element.

  • .border-primary 

The entire border-color changes when we use this class to blue color.

  • .border-end-0

It removes the border from the right of the element.

  • .rounded 

Elements get the rounded edge when we use this class.

 

Program

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1" />
		<title>Bootstrap Border Classes</title>
		<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" />
		<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"></script>
		<style>
			.bs-example {
				margin: 10px;
			}
			.bs-example span {
				display: inline-block;
				width: 80px;
				height: 80px;
				margin: 10px;
				background-color: #d48e26;
			}
		</style>
	</head>
	<body>
		<div class="m-4 bs-example">
			<h3>Bootstrap Border Classes</h3>
			<span class="border-start border-4"></span>
			<span class="border-end border-4"></span>
			<span class="border border-primary border-4"></span>
			<span class="border border-end-0 border-4"></span>
			<span class="border rounded border-4"></span>
		</div>
	</body>
</html>

Output

output

 

Frequently Asked Questions

How can we start using Bootstrap?

The links provided on Bootstrap's official website can be included in your file in the header, and after that, add classes to respective elements for interacting with the results.

What are Bootstrap helper classes for floating the element?

For floating an element, we can use .float-end, .float-start, .clearfix, etc.

What are Bootstrap helper classes for adding shadow to the element?

For adding shadow to an element, we can use .shadow, .shadow-sm, .shadow-lg, and .shadow-none.

How can we use the components of Bootstrap?

There are many classes; for example, for dropdowns, we have .drop-down and many more provided by the bootstrap framework, which can be added to the respective elements to get used.

Whom does bootstrap help generally?

Bootstrap helps front-end developers.

Conclusion

In this blog, we enlisted the bootstrap helper classes along with color classes, background-color classes, text alignment classes, border classes, and many more. To read more about bootstrap, you can read our blogs:


You may refer to our Guided Path on Code Studios for enhancing your skill set on DSACompetitive ProgrammingSystem Design, etc. Check out essential interview questions, practice our available mock tests, look at the interview bundle for interview preparations, and so much more!

Happy Learning, Ninjas!

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