Bootstrap 4 Buttons

Bootstrap 4 is an incredibly popular front-end framework that allows developers to create responsive and mobile-first websites quickly. One of the essential components of Bootstrap is its variety of button styles that enhance user experience. This article provides a comprehensive guide to using Bootstrap 4 buttons, including their classes, sizes, states, and variations. Whether you’re building forms, navigation links, or calls to action, you’ll find the perfect button styles for your needs.

I. Bootstrap Button Classes

Bootstrap provides a comprehensive set of predefined button classes that you can easily implement. Each class styles buttons for different purposes and significance. Below are the detailed classes of Bootstrap buttons:

Button Type	Class Example
Default Buttons	<button class="btn btn-default">Default</button>
Primary Buttons	<button class="btn btn-primary">Primary</button>
Secondary Buttons	<button class="btn btn-secondary">Secondary</button>
Success Buttons	<button class="btn btn-success">Success</button>
Danger Buttons	<button class="btn btn-danger">Danger</button>
Warning Buttons	<button class="btn btn-warning">Warning</button>
Info Buttons	<button class="btn btn-info">Info</button>
Light Buttons	<button class="btn btn-light">Light</button>
Dark Buttons	<button class="btn btn-dark">Dark</button>
Link Buttons	<button class="btn btn-link">Link</button>

A. Default Buttons

<button class="btn btn-default">Default</button>

B. Primary Buttons

<button class="btn btn-primary">Primary</button>

C. Secondary Buttons

<button class="btn btn-secondary">Secondary</button>

D. Success Buttons

<button class="btn btn-success">Success</button>

E. Danger Buttons

<button class="btn btn-danger">Danger</button>

F. Warning Buttons

<button class="btn btn-warning">Warning</button>

G. Info Buttons

<button class="btn btn-info">Info</button>

H. Light Buttons

<button class="btn btn-light">Light</button>

I. Dark Buttons

<button class="btn btn-dark">Dark</button>

J. Link Buttons

<button class="btn btn-link">Link</button>

II. Button Sizes

Bootstrap allows you to adjust the size of the buttons according to your needs. There are three predefined button sizes: large, small, and extra small. The size can easily be applied to any button using specific classes.

Button Size	Class Example
Large Buttons	<button class="btn btn-primary btn-lg">Large Button</button>
Small Buttons	<button class="btn btn-primary btn-sm">Small Button</button>
Extra Small Buttons	<button class="btn btn-primary btn-xs">Extra Small Button</button>

A. Large Buttons

<button class="btn btn-primary btn-lg">Large Button</button>

B. Small Buttons

<button class="btn btn-primary btn-sm">Small Button</button>

C. Extra Small Buttons

<button class="btn btn-primary btn-xs">Extra Small Button</button>

III. Button Tags

In Bootstrap, you can create buttons using either button elements or anchor tags. Both offer different functionalities and should be used according to the context of your application.

A. Button Elements

These are the standard buttons created with the <button> tag.

<button class="btn btn-primary">Button</button>

B. Anchor Tags

Anchor tags can be styled as buttons and are used to navigate to different sections or pages.

<a href="#" class="btn btn-primary">Link Button</a>

IV. Button States

Buttons may have different states, indicating their current operation or availability. Bootstrap provides built-in classes that help you denote the active and disabled states of buttons.

A. Active State

To show that a button is currently active, you can use the active class along with the button class.

<button class="btn btn-primary active">Active Button</button>

B. Disabled State

You can create a disabled button by adding the disabled attribute, which will grey out the button and make it unclickable.

<button class="btn btn-primary" disabled>Disabled Button</button>

V. Outline Buttons

Outline buttons are a different style that feature a transparent background with a border. You can create them by adding the btn-outline-* class before the button type.

<button class="btn btn-outline-primary">Outline Primary</button>

VI. Button Groups

To group multiple buttons together, Bootstrap provides a button group component. Button groups are useful for actions that are related to one another.

<div class="btn-group">
  <button class="btn btn-primary">Button 1</button>
  <button class="btn btn-primary">Button 2</button>
  <button class="btn btn-primary">Button 3</button>
</div>

VII. Conclusion

In conclusion, Bootstrap 4 buttons provide numerous options for styling and functionality. Understanding the various button classes, sizes, states, and grouping options can greatly enhance your web applications. With Bootstrap, you can ensure that your buttons are not only aesthetically pleasing but also functional and responsive.

VIII. FAQ

Q1: What is Bootstrap?

Bootstrap is a popular front-end framework for designing responsive and mobile-first websites. It includes CSS, JavaScript, and various UI components.

Q2: How to use Bootstrap 4 buttons?

You can use Bootstrap 4 buttons by including the Bootstrap library in your project and applying the button classes to your HTML elements.

Q3: What are outline buttons?

Outline buttons are a variant of buttons that feature transparent backgrounds with colored borders. They offer a lighter, more minimalist style.

Q4: How do I create a button group?

To create a button group, wrap multiple button elements inside a <div class=”btn-group”> element.

Q5: Can I customize Bootstrap buttons?

Yes, you can customize Bootstrap buttons by adding your own CSS styles or by using the Bootstrap utilities for spacing, colors, and typography.