How to Center an Element Horizontally and Vertically in CSS

Discover how to easily `center` a circle and arrow icon in a rectangle button using CSS. This step-by-step guide helps you with practical examples!
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This video is based on the question https://stackoverflow.com/q/70297041/ asked by the user 'Deadpool_er' ( https://stackoverflow.com/u/11861923/ ) and on the answer https://stackoverflow.com/a/70297343/ provided by the user 'A Haworth' ( https://stackoverflow.com/u/10867454/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Center an Element Horizontally and Vertically in CSS

Creating visually appealing buttons or UI elements is essential in modern web design. One common challenge developers face is centering elements, particularly when combining shapes like circles and buttons. In this guide, we will tackle the problem of centering a circle inside a rectangle and ensuring an arrow is perfectly aligned alongside it. We'll break down the solution into manageable steps, so even beginners can follow along!

The Problem

You might find yourself trying to create a rectangular button that features a circle and an arrow icon inside it. While this might sound simple, centering elements within a container without relying on fixed positioning can be tricky. This approach allows for scalability and responsiveness. In this scenario, we will use CSS for our layout, specifically focusing on centering both the circle and the arrow within the rectangle.

The HTML Structure

First, let's set up our basic HTML structure for the rectangle. The HTML code looks like this:

[[See Video to Reveal this Text or Code Snippet]]

Original CSS Attempt

Initially, the CSS code might look like this:

[[See Video to Reveal this Text or Code Snippet]]

While some elements are being centered vertically using transform: translateY(-50%), the code doesn’t account for horizontal centering.

The Solution: Centering Both Elements

Step 1: Center the Circle

To center the circle both horizontally and vertically within the rectangle, we need to adjust the CSS like so:

[[See Video to Reveal this Text or Code Snippet]]

Here, by adding left: 50% and adjusting the transform property, we ensure that the circle is perfectly centered.

Step 2: Center the Arrow

For the arrow icon, it's necessary to account for its transformation. We want to center it relative to its rotated position, so we use the following CSS:

[[See Video to Reveal this Text or Code Snippet]]

The translate(-75%, -50%) shifts the arrow to the left to account for its right-angled position.

Final Code Overview

Here’s how the complete code structure should look once we’ve implemented these changes:

[[See Video to Reveal this Text or Code Snippet]]

And the corresponding HTML remains the same:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following the outlined steps, you can easily center the elements within your rectangle button. Utilizing position, transform, and understanding how to manipulate these CSS properties can greatly enhance your web design skills. Now you can create stunning buttons that feature perfectly centered graphics, presenting a cleaner look in your UI design. Happy coding!

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