Bootstrap Interview Questions and Answers in 2025 (100+ Q&A)

Ques:- What is HTML, CSS, Photoshop ?

Asked In :- Xoriant Solutions Pvt Ltd, Walkover Web Solutions, Hummingbird Web Solutions, Walstar Technologies, CodeClouds IT Solutions, Angular Minds, Motherson Sumi Infotech Design, INNOART TECHNOLOGIES, Surya Software, Aliens Group,

Right Answer:
HTML (HyperText Markup Language) is the standard language for creating web pages, defining the structure and content. CSS (Cascading Style Sheets) is used to style and layout web pages, controlling the appearance of elements. Photoshop is a graphic design software used for editing and creating images, often used for web graphics and design.

Bootstrap CSS 3 Javascript

Ques:- What is SCALE in html meta tag?

Asked In :- Twilio, SPB, Testrig Technologies, AppSquadz, Unvired, Viral Technologies, Technologics, ConveGenius, Infosys BPM, QUALIAN TECHNOLOGIES PVT,

Right Answer:
The SCALE in the HTML meta tag typically refers to the viewport settings for responsive design, specifically controlling the scaling of the webpage on mobile devices. It is often set using the `<meta name="viewport" content="width=device-width, initial-scale=1.0">` tag, where `initial-scale` defines the initial zoom level when the page is first loaded.

Bootstrap Ui Developer wordpress

Ques:- How many grid in Bootstrap?

Asked In :- Helical It Solutions, Surya Software, Twilio, Xenovex technologies, Techment, Softsuave, Ritwik Software Technologies, Shop Hop, Evergent Technologies, ManekTech - Ahmedabad,

Right Answer:
Bootstrap has 12 columns in its grid system.

Bootstrap Javascript Jquery Software Developer/ Programmer

Ques:- What is closure in java script?

Asked In :- HashRoot Technologies, Xenovex technologies, Zen Corp Techno Solutions, HuntingCube, EvolveWare, Cloud Analogy, BridgeLabz Solutions, Kokoro, Pickrr Technologies, Vaayu,

Right Answer:
A closure in JavaScript is a function that retains access to its lexical scope, even when the function is executed outside that scope. This means it can remember the variables from its original context even after that context has finished executing.

Bootstrap JAVA Jquery Node JS

Ques:- What is ROR

Asked In :- Cron-J, eBay Classifieds, Skylex Technologies, Orion Innovation, citiustech, sopra banking software, mobikasa, great learning, iopex technologies, palle technologies,

Right Answer:
ROR stands for Ruby on Rails, which is a web application framework written in the Ruby programming language.

ASP Bootstrap C CSS 3 Javascript Jquery SQL Server

Ques:- What Is Programming?

Asked In :- Elsner Technologies, First Zen, Destination technologies, ScriptsHub Technologies, Zessta Software Services, DataCore, UCA, Cavisson Systems, Ultramain Systems, EvolveWare,

Right Answer:
Programming is the process of creating a set of instructions that a computer can follow to perform specific tasks or solve problems.

Bootstrap CSS 3 Javascript Jquery Photoshop

Ques:- What is keyframe?

Asked In :- PrimeSoft Solutions, WAEC, Ranosys Technologies, AM InfoWeb, ApMoSys Technologies, EvolveWare, Java R&D, FlyNava Technologies, Profound Edutech, YouView,

Right Answer:
A keyframe is a specific point in an animation that defines the starting and ending points of a transition, allowing you to control the intermediate steps in the animation sequence.

Bootstrap

Ques:- What is page header class in bootstrap?

Asked In :- Vanilla Networks, Cybrosys Technologies, vanenburg software,

Right Answer:
The page header class in Bootstrap is used to create a header section for your content, typically using the class `page-header`. However, in Bootstrap 4 and later, the `page-header` class has been replaced by utility classes like `h1`, `h2`, etc., for headings, and you can use `mb-4` for margin spacing.

Bootstrap

Ques:- How to center a column in Bootstrap?

Asked In :- Angular Minds, ManekTech - Ahmedabad, adam milo,

Right Answer:
To center a column in Bootstrap, you can use the `mx-auto` class along with a specified width. For example:

```html
<div class="container">
<div class="row">
<div class="col-6 mx-auto">Centered Column</div>
</div>
</div>
```

Bootstrap

Ques:- What are bootstrap Panels and their use?

Asked In :- xebia, iopex technologies, brainstorm force,

Right Answer:
Bootstrap panels are components used to create flexible and extensible content containers. They can be used to group related content, display information, or create a structured layout. Panels typically include a header, body, and footer, and can be styled with various Bootstrap classes for customization.

Bootstrap

Ques:- What are the default sizes given to <body> tag in the Bootstrap Framework?

Asked In :- MAXVY,

Right Answer:
The default sizes given to the `<body>` tag in Bootstrap are typically set to a font size of 1rem (16px) and a line height of 1.5. The body also has a default margin of 0 and padding of 0.

Bootstrap

Ques:- Does Bootstrap supports LESS and SASS CSS structure in any form?

Asked In :- webgrity,

Right Answer:
Yes, Bootstrap supports both LESS and SASS CSS structures.

Bootstrap

Ques:- How you can add badge to list group in Bootstrap?

Asked In :- Cybrosys Technologies, Technologics, ManekTech - Ahmedabad,

Right Answer:
You can add a badge to a list group in Bootstrap by using the `<span>` element with the class `badge` inside the list group item. For example:

```html
<ul class="list-group">
<li class="list-group-item">
Item 1 <span class="badge bg-primary">New</span>
</li>
<li class="list-group-item">
Item 2 <span class="badge bg-secondary">42</span>
</li>
</ul>
```

Bootstrap

Ques:- What are the common bootstrap class to apply background colors.

Asked In :- Technologics,

Right Answer:
The common Bootstrap classes to apply background colors are:

- `bg-primary`
- `bg-secondary`
- `bg-success`
- `bg-danger`
- `bg-warning`
- `bg-info`
- `bg-light`
- `bg-dark`
- `bg-white`
- `bg-transparent`

Bootstrap

Ques:- How to insert a search icon in Bootstrap?

Asked In :- Unvired,

Right Answer:
To insert a search icon in Bootstrap, you can use the Font Awesome library or Bootstrap Icons. Here’s an example using Font Awesome:

```html
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta3/css/all.min.css">

<div class="input-group">
<input type="text" class="form-control" placeholder="Search">
<div class="input-group-append">
<span class="input-group-text"><i class="fas fa-search"></i></span>
</div>
</div>
```

Make sure to include the Font Awesome CSS link in your HTML.

Bootstrap

Ques:- What are current Stable version of Bootstrp ?

Asked In :- Vanilla Networks,

Right Answer:
The current stable version of Bootstrap is 5.3.0.

Bootstrap

Ques:- In Which language Bootstrap is written ?

Asked In :- Twilio, iopex technologies,

Right Answer:
Bootstrap is written in HTML, CSS, and JavaScript.

Bootstrap

Ques:- What is Media Object ?

Asked In :-

Right Answer:
A Media Object in Bootstrap is a component that allows you to align media (like images or videos) alongside content (like text) in a flexible and responsive way. It typically consists of an image or video on one side and text on the other, making it easy to create media-rich layouts.

Bootstrap

Ques:- How display code in bootstrap ?

Asked In :- Unvired, TechRAQ Info Solutions,

Right Answer:
To display code in Bootstrap, use the `<code>` tag for inline code and the `<pre>` tag for block code. You can also use the `.bg-light` and `.p-2` classes for better visibility. Here’s an example:

```html
<pre class="bg-light p-2">
<code>
// Your code here
</code>
</pre>
```

Bootstrap

Ques:- In what way bootstrap 4 different from bootstrap 3 ?

Asked In :- Webtech Developers,

Right Answer:
Bootstrap 4 differs from Bootstrap 3 in several key ways:

1. **Flexbox**: Bootstrap 4 uses Flexbox for layout, allowing for more flexible and responsive designs.
2. **Grid System**: The grid system has been updated to include a new tier for extra small devices (xs) and improved column classes.
3. **Cards**: Bootstrap 4 introduces a new card component for flexible content containers.
4. **Utilities**: New utility classes have been added for spacing, sizing, and alignment.
5. **Removed jQuery**: Bootstrap 4 has removed the dependency on jQuery for its JavaScript components.
6. **Custom Forms**: The form controls have been redesigned for better customization and styling.
7. **Sass**: Bootstrap 4 uses Sass for its CSS preprocessor, allowing for better customization and theming.

These changes enhance the overall functionality and responsiveness of Bootstrap.

The “Bootstrap” category refers to the study and application of the world’s most popular front-end framework for web development. Bootstrap is a powerful, open-source toolkit that streamlines the process of creating responsive and mobile-first websites. By providing a standardized collection of reusable components and a robust grid system, it enables developers and designers to build professional-looking websites efficiently and consistently across all major browsers and devices.

The core of Bootstrap’s functionality revolves around several key features:

Responsive Grid System: This is arguably Bootstrap’s most famous and essential feature. The framework’s 12-column responsive grid system allows developers to create complex layouts that automatically adjust to different screen sizes, from large desktop monitors to small mobile phones. This “mobile-first” approach ensures that websites are optimized for smaller screens from the start.
CSS and JavaScript Components: Bootstrap offers a vast library of pre-designed, ready-to-use components. These include common UI elements such as navigation bars, buttons, dropdowns, forms, alerts, and modal windows. These components are styled with CSS and often include interactive functionality powered by JavaScript, saving developers significant time and effort in coding from scratch.
Customization: While Bootstrap provides a default design, it is highly customizable. The framework is built with Sass, allowing developers to easily modify colors, fonts, and other design variables to match a specific brand identity without having to override the core CSS files.

The advantages of using Bootstrap are numerous. It accelerates the development process, ensures a consistent user experience, and helps a wide range of websites to be accessible and functional on any device. Its clear documentation and large community make it an excellent choice for both beginners learning to code and seasoned developers building large-scale applications. In essence, Bootstrap acts as a foundational blueprint, democratizing web design and allowing creators to focus on the unique content and functionality of their websites.

Questions in: Bootstrap

What makes Takluu valuable for interview preparation?

Get Our Mobile App

Programming

Reasoning

Network & Telecom

Management

What makes Takluu valuable for interview preparation?