Remove background from an image using just CSS

Note: I just translated the text below and posted it here. References are at the end of this article.

In this beginner-friendly blog post, we will learn how to remove the background from an image using just CSS, specifically the CSS property mix-blend-mode. This technique is useful for creating interesting visual effects and improving your website's performance by reducing the need for edited images.

Why is this trick important?

When downloading a .png file, you can expect it to have a transparent background. However, this is not always the case. Sometimes a .png file may have a solid background color, such as white or black.

In these cases, you can use the CSS property mix-blend-mode to remove the solid background color and create the appearance of a transparent background.

What is mix-blend-mode?

mix-blend-mode is a CSS property that defines how the content of an element should blend with the content of the parent element and its background. With this, you can create nice blends and colors for parts of an element's content depending on its direct background.

Check out this article.

To remove the background from an image, we will use the CSS property mix-blend-mode with the value multiply. This value will remove the whitest parts of the image. Here is an example:

Image inside div:

Image inside div with mix-blend-multiply:

Similarly, we can write this with TailwindCSS.

In this tutorial, we learn how to remove the background from an image using just CSS and the mix-blend-mode property. This technique allows for greater design flexibility, better performance, and better SEO benefits compared to using edited images. With this knowledge, you can create interesting visual effects on your website and improve the overall user experience.

Source

Article written by jeetvora331.

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