Add classes to an element to easily style images in any project. Create block level buttons—those that span the full width of a parent— by adding .btn-block. Mixins are used in conjunction with the grid variables to generate semantic CSS for individual grid columns. In addition to column clearing at responsive breakpoints, you may need to reset offsets, pushes, or pulls.

Since Bootstrap is a 12-column system, you’ll have to specify the number of twelve available columns you wish to span. Say you’d like to create three equal-width columns that are centered on the page across devices at any size. Then you need three “four-of-twelve” columns, as represented by the .col-4 class. This is just one example of how using Bootstrap components is much faster than coding them from scratch.

Why You Shouldn’t Use Bootstrap

It appears only on mobile, when the content of the navigation bar must be collapsed to fit the smaller screen. There are two different forms of Bootstrap available for download. Each version — a precompiled and a source code version — appeal to different users depending on whether they prioritize ease-of-use or flexibility. If you have multiple collaborators working on a site, then consistency is important. Using Bootstrap and its default settings, utility classes, and component elements can help ensure the front end of your site looks consistent. Building a responsive site is much easier using Bootstrap than doing so from scratch.

what is bootstrap css

Bootstrap is an HTML, CSS and JS library that focuses on simplifying the development of informative web pages (as opposed to web applications). The primary purpose of adding it to a web project is to apply Bootstrap’s choices of color, size, font and layout to that project. As such, the primary factor is whether the developers in charge find those choices to their liking. Once added to a project, Bootstrap provides basic style definitions for all HTML elements. The result is a uniform appearance for prose, tables and form elements across web browsers. In addition, developers can take advantage of CSS classes defined in Bootstrap to further customize the appearance of their contents.

Twitter, Inc.

If you must do without labels, adjust the top value of the feedback icon. For input groups, adjust the right value to an appropriate pixel value depending on the width of your addon. Add the disabled boolean attribute on an input to prevent user interactions.

Utilizes the micro clearfix as popularized by Nicolas Gallagher. As with contextual colors, ensure that any meaning conveyed through color is also conveyed in a format that is not purely presentational. Use any of the available button classes to quickly create a styled button. Should you have no text within the , the input is positioned as you’d expect. Remember to still provide some form of label for assistive technologies (for instance, using aria-label).

When Not to Use Bootstrap

Use our color picker to find different RGB, HEX and HSL colors. Bootstrap features a dozen plugins that you can drop into any project. Drop them in what is bootstrap used for all at once, or choose just the ones you need. Override global, component, or utility class variables to customize Bootstrap just how you like.

what is bootstrap css

By using this form you agree that your personal data would be processed in accordance with our Privacy Policy. If you’re a web designer or a digital artist, you might be familiar with the concept of the rendering process. Therefore, every software engineer should learn about jQuery as it’s an essential part of web development. Despite its advantages, Bootstrap has certain limitations that are not suitable for specific types of projects. Bootstrap also provides additional classes like .img-circle and .img-rounded, which help to modify the images’ shape. Bootstrap handles the image display and responsiveness with its predefined HTML and CSS rules.

Responsive images

You can also choose to include Popper and our JS separately. We hope this article answered the question of what bootstrap is and helped you understand the benefits of using it in web development and web design. An example of how to use the Bootstrap navbar navigation links to create sites’ menus.

what is bootstrap css

You can also use themes for popular content management systems as learning tools. For example, most WordPress themes were developed using Bootstrap, which any beginner web developer can access. Due to its popularity, plenty of tutorials and online forums are available to help you get started. If you’re still not convinced whether Bootstrap is worth a try, here are the advantages of using it compared to other web development frameworks. You can also install Bootstrap with a package manager ‒ a tool that manages and updates frameworks, libraries, and assets.

Bootstrap’s primary objective is to create responsive, mobile-first websites. It ensures all interface elements of a website work optimally on all screen sizes. This will ensure that whatever CSS you add in the custom.css file overrides the default styles in the index.html file. Once you’re done, save this file in the same folder as your Bootstrap CSS and JS files and index.html file. Then, you just need to add one line of code to the header of your index.html file. A carousel is a slideshow for presenting a series of content, whether that’s images, text, or custom markup.

what is bootstrap css

Below we’ll look at why Bootstrap is so popular and when it’s ideal to use — and when it’s not ideal. Resize your browser or load on different devices to test the responsive utility classes. For faster mobile-friendly development, use these utility classes for showing and hiding content by device via media query. Also included are utility classes for toggling content when printed.

For example, Bootstrap has provisioned for light- and dark-colored tables, page headings, more prominent pull quotes, and text with a highlight. Once you download the framework, you can get started with a basic template and then add the components you need. These components are fundamental HTML elements, like tables, forms, buttons, images, and icons, that are styled with a base class and extended with modifier classes. Using these pre-designed components significantly limits the amount of custom CSS you have to write.

  • It provides margins, padding, alignments, and more, to HTML elements.
  • Create responsive tables by wrapping any .table in .table-responsive to make them scroll horizontally on small devices (under 768px).
  • By the end of this tutorial, you’ll have a solid understanding of Bootstrap’s capabilities and be able to apply them effectively in your web development projects.
  • When viewing on anything larger than 768px wide, you will not see any difference in these tables.