CSS Grid vs. Bootstrap: All You Need To Know

Antariksh Goyal - Dec 28 '22 - - Dev Community

A critical component for every business website is a high-quality user interface. A well-designed interface gives the users an intuitive and efficient experience, which positively affects their perception of the brand. There are multiple tools or layout grids that help define website layout and placement of UI elements. Layouts can also play an important role in designs that are viewed on different screen sizes or devices. For example, a desktop design can most of the time be too congested for a mobile screen design. However, web developers can utilize some of the best CSS frameworks to create browser compatible websites and web pages.

In today’s web frontend scenario, CSS is the way through which we control the formatting and look and feel of the HTML content. There are various ways in which the layout of elements can be controlled on a page. In this blog, we discuss and compare two major layout patterns (CSS Grid and Bootstrap) that aid in effective placement of the elements on a page. We will also do a detailed comparison of CSS Grid vs. Bootstrap so that you can make an informed decision in selecting the best-suited layout pattern.

Though the CSS Grid vs. Bootstrap comparison might look like comparing ‘apples vs oranges’, but as you continue to read through the blog; you will surely get a clearer picture of this comparison.

New to CSS Selectors? Check out this Ultimate CSS Selector cheat sheet to boost your web designing career.

CSS Grid vs. Bootstrap: The base for comparison

CSS Grid is mostly used where we are more rigid about the layout and want our content to flow on the page as per the desired layout. CSS Grid was inspired by print-based ’id.’ whereas, Bootstrap’s grid system is based on the CSS Flexbox layout system. Bootstrap directly competes with CSS Grid, drawing a strong comparison with the grid layout system of CSS Grid.

In the following sections of this blog, we will try to draw some strong comparisons between CSS Grid and Bootstrap’s wrapper on Flexbox. Any reference to Bootstrap refers to the Grid system used in Bootstrap (which is based on Flexbox).

So as a general rule ‘content out’ is for Bootstrap and ‘layout in’ is for CSS Grid.

If we want to control the layout in either row or column direction, then we should go for Bootstrap’s Flexbox-based grid. On the other hand, you should opt for CSS Grid if you want layout control on both row and column.

Now perform live interactive Bootstrap testing of your websites on the LambdaTest platform.

CSS Grid vs. Bootstrap: Detailed Comparison

Mostly the debate to choose between the Bootstrap and CSS Grid layout starts with discussing the number of axis users can control for the content while working with the layout.

What is a CSS Grid?

CSS Grid is a layout mechanism that ensures the static structure of a website or app remains functional and usable. It comprises rows and columns to create ordered columns and rows consisting of cells. In CSS Grid, the content can be controlled in row and column directions (i.e. in 2D direction).

The CSS Grid Layout module allows developers to create grid-based layouts where items position themselves automatically within the grid container with a flexible sizing algorithm. The auto-placement algorithm distributes items efficiently by utilizing available space, balancing the amount of space consumed by the content, and packing items as tightly as possible. This approach facilitates responsiveness in the website (or web application).

The goal of a responsive website is to provide an optimal viewing experience–easy reading and navigation with a minimum of resizing, panning, and scrolling–across a wide range of devices (from desktops to mobile phones). Now, you can test your websites or web app on 50+ Android & iOS screens with this free responsive design checker called LT Browser.

LT Browser comes with a host of features that enhance your testing experience and provide a comfortable environment for responsive design like the developer tools.

If you are new to LT Browser, refer to our LT Browser tutorial to get started with responsive testing.

Which are the most wanted testing automation tools that have climbed the top of the ladder so far? Let’s take a look.

What is a Bootstrap Grid?

Bootstrap is a free and open-source HTML, CSS, and JavaScript toolkit for developing simple to use web components. The powerful grid system allows any designer/developer to implement a wide range of layouts in a simplified manner.

The Bootstrap Grid system is built on a twelve-column layout that is responsive and super flexible. It can be used to create anything from simple content pages to complex landing pages. In addition, the module system built with Flexbox in mind allows developers to create layouts that respond to different screen sizes.

Now perform live interactive Bootstrap testing of your websites on the LambdaTest platform.

How do CSS Grid and Bootstrap Grid work?

CSS Grid divides the website space into rows and columns, which can be allocated in fixed-width by specifying the pixels or the fraction (using fr) of the available space to be allocated to a designated section. With CSS Grid, you create flexible layouts that work on any screen size.

In Flexbox or the Bootstrap Grid system, the control is in 1 dimension only, i.e., the parent row or the flex line is the direction in which the items can be controlled, and the space distribution happens across the flex line (the row). Here, each new row is a new flex line in the flex container.

1D control in Flexbox

HTML

<div class="wrapper">
   <div>One</div>
   <div>Two</div>
   <div>Three</div>
   <div>Four</div>
   <div>Five</div>
</div>
Enter fullscreen mode Exit fullscreen mode

CSS

.wrapper {
 width: 500px;
 display: flex;
 flex-wrap: wrap;
}

.wrapper>div {
 flex: 1 1 150px;
}
Enter fullscreen mode Exit fullscreen mode

OUTPUT

In the above code, the child divs are adjusted on the screen as per the screen size. If we reduce the screen size, the content will flow to the next flex line as we have set the flex-wrap as ‘wrap.’ So, if we want the elements to line up, then we want 2D dimensional control, which CSS Grid gives. Here we can tell how many max elements can be there in a row, and those won’t become less as we squeeze the screen. This can also be controlled by using the auto-flow option in CSS Grid.

2D control in CSS Grid

HTML

<div class="wrapper">
   <div>One</div>
   <div>Two</div>
   <div>Three</div>
   <div>Four</div>
   <div>Five</div>
</div>
Enter fullscreen mode Exit fullscreen mode

CSS

.wrapper {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
}
Enter fullscreen mode Exit fullscreen mode

OUTPUT

In this tutorial, learn what is Regression testing, its importance, types, and how to perform it.

If we want to place the content precisely on a page, then CSS Grid is better, but if we want the flexibility of the layout, then we should go for Bootstrap. In Bootstrap, it is hard to predict the behavior at certain breakpoints or viewports, and the user might end up getting unexpected layout results (maybe that is the tradeoff with the flexibility one gets with Flexbox layout).

CSS Grid also helps in making unusual, asymmetric, and overlapping contents. We can surely use z-index in Bootstrap to place overlapping content. However, it is a bit difficult to control the asymmetry and overlapping of contents using Bootstrap. In CSS Grid, we can control each overlapping content’s start and end column and create specific layout designs.

CSS Grid uses ‘fr’ (fractional unit, one unit of available screen space) to define the space limits each grid row element should take (as shown in the above example). On the other hand, Bootstrap uses the column system in its grid to define the space each column would take in a row.

Bootstrap can accommodate a maximum of 12 columns in a row, and those can be combined too as per viewports to give a finer control to the end-user experience. Finally, we will discuss specific examples to make things clearer about the grid system.

Both CSS Grid and Bootstrap give the user responsive designs. But CSS Grid does not have predefined grid breakpoints, whereas Bootstrap has predefined breakpoints based on the min-width media queries. This means that they apply to that breakpoint and all the ones above it.

  • Bootstrap’s responsive breakpoints are as follows:

  • Width < 576 px are referred as extra small (xs)

  • Width >= 576 px as small (sm)

  • Width >= 768 px as medium (md)

  • Width >= 992 px as large (lg)

  • Width >= 1200 px as extra large (xl)

  • Grid tiers can be updated (the number and the width breakpoints) by changing the values of the properties $grid-breakpoints and $container-max-widths in Bootstrap’s sass files.

Column system and grid breakpoints in Bootstrap

col-* are used for extra small screens
col-sm-* used for small screens
col-md-* used for medium screens
col-lg-* used for large screens
col-xl-* used for extra-large screens

<div class="row">
   <div class="col-12 col-md-8">.col-12 .col-md-8</div>
   <div class="col-6 col-md-4">.col-6 .col-md-4</div>
</div>
<div class="row">
   <div class="col-6 col-md-4">.col-6 .col-md-4</div>
   <div class="col-6 col-md-4">.col-6 .col-md-4</div>
   <div class="col-6 col-md-4">.col-6 .col-md-4</div>
</div>
<div class="row">
   <div class="col-6">.col-6</div>
   <div class="col-6">.col-6</div>
</div>
Enter fullscreen mode Exit fullscreen mode

Output in medium screen

Output in small screen

In Bootstrap, the column width is always specified in percentage relative to the flex container. Whereas in CSS Grid, either the content is allowed to use up space as per its requirement, or the use of ‘fr’ (fractional unit) is done to control the number of min-max columns placed in a row.

CSS Grid is generally used when the maths for placing the items on the page is too much in Flexbox or Bootstrap. It can be applied in scenarios where we end up using calc() for controlling the width or height of the elements in our Bootstrap grid’s items. In that case, we should always consider using CSS Grid, mainly because CSS Grid gives us more control. Secondly, we are giving away the flexibility of flexboxes if we are fine controlling the placement of elements. CSS Grid gives us finer control over the elements by using functions like minmax() and fractional units. Algorithmic layouts are mostly achieved using CSS Grid.

Bootstrap is a framework for frontend design, whereas CSS Grid is a native module of CSS, so no additional module import is required for them. This saves the project build time and minimizes the bundle size. So the use of CSS Grid might also show gains in the speed and response time of the website.

For achieving the same goal or layout, we might end up writing more markup in the case of Bootstrap as compared to CSS Grid. To make the design responsive and tailor-made for different viewports, we have to explicitly take care of the different grid sizes. In the case of CSS Grid, we can control this behavior by using algorithmic layouts, which requires a lot less code or markup.

CSS Grid vs. Bootstrap: Similarities

Apart from all the differences between the CSS Grid layout and Bootstrap’s flexbox-based layout system, there are some similarities too between them.

  • Both the system allows us to order the grid items explicitly, and the source order of the grid items does not matter.

  • We can use keywords for justify-item/self-, align-item/self- to control the alignment of grid items in a row and the column cell (column inside the gridline).

CSS Grid vs. Bootstrap: Browser Support and Compatibility

The greatest barrier that the CSS Grid faced in gaining widespread popularity was poor cross browser compatibility. Until 2017, CSS Grid was only supported by Google Chrome and Firefox, while Internet Explorer, Microsoft Edge, Opera, and even Safari did not provide browser support for the CSS Grid. However, CSS Grid has seen further improvements in browser support since 2017.

Source- Caniuse. com

Source- Caniuse. com

Discover what is Regression testing, its significance, the various types of Regression testing, and how to perform it correctly.

Conclusion

The choice for the grid layout for your webpage depends on the way we want our content or layout to be prioritized. We can surely choose one of them for our implementations, but having said that, the combination of both CSS Grid and Bootstrap can also help the user create some awesome-looking layouts. You can test the applicability and look and feel of your web page’s layout by analyzing and testing the web pages on cross browser testing tools like LambdaTest.

Please let us know in the comments if you have any questions or want to discuss any concept in detail.

Frequently Asked Questions

1. Is CSS Grid better than Bootstrap?

For many designers, Grid CSS is a better choice than Bootstrap. The following points tell you why.

  • You will have simple markups

  • Offers greater flexibility

  • Unlimited columns

2. Does CSS Grid replace Bootstrap?

If you want a flexible layout that can be changed with a pinch of the fingers, then CSS Grid is for you. If you have items that can be placed onto a page and you want to space them out equally, then Bootstrap is for you.

3. Is Bootstrap grid the same as CSS Grid?

Unlike standard CSS Grid, in Bootstrap Grid, column elements are placed within row elements, creating a horizontal group of columns with each row. However, the columns remain the immediate children of the respective rows where they are being placed.

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