mix-blend-mode is an attribute in CSS that controls the way elements and background content are mixed. It allows web page elements such as text, images, etc. to produce a mixed effect similar to Photoshop layer. 1. Common values ??include normal, multiply, screen, overlay, etc.; 2. Suitable for scenes such as text and background fusion, multi-layer overlay, dynamic interaction design, etc.; 3. Pay attention to background dependence, browser compatibility, performance impact and readability issues when using it; 4. Beginners can start by setting background pictures, adding text or color blocks, and trying different blending modes.

The mix-blend-mode property of CSS brings visual effects similar to Photoshop layer mixing to web design. It allows different elements to overlay on the page to produce rich color fusion and interaction effects, especially suitable for creative combinations of backgrounds, texts and images.

What is mix-blend-mode ?

Simply put, mix-blend-mode controls how an element is mixed with the content behind it. It behaves similarly to the layer blending mode in image editing software. For example, you can "fusion" a picture with the text below, or let two color blocks overlap to create new color levels.

The usage method is also simple, just set it in CSS:

 .element {
  mix-blend-mode: multiply;
}

Common supported values ??include: normal , multiply , screen , overlay , darken , lighten , etc.

Which scenarios are suitable for mix-blend-mode ?

This property is most commonly used in the following situations:

• Fusion of text and background : For example, add a paragraph of text to the picture and set mix-blend-mode of the text to naturally combine it with the background.
• Multi-layer overlay effect : When multiple elements overlap, different blending modes can be used to create visual impact.
• Dynamic interaction design : Use scrolling, hovering and other actions to achieve dynamically changing visual effects.

For example, if you want the text to be more prominent in the picture but not appear stiff, you can write it like this:

 .text {
  mix-blend-mode: difference;
  color: white;
}

In this way, the text will automatically adjust the display effect according to the background color, and sometimes it can even form a visual style like a negative film.

What should you pay attention to when using it?

While mix-blend-mode is cool, there are several details that cannot be ignored:

• It only works for areas with background content . If the element is followed by a blank (such as body without background), then there is no mixing effect.
• The support of different browsers is slightly different, and it is recommended to add -webkit- prefix, especially when testing on mobile.
• Blending mode affects page performance, especially when a large number of elements are used simultaneously. Try to control quantity and hierarchy.
• Text mixing can affect readability, be careful to test contrast.

Therefore, it is best to try it in a small range before using it to ensure that the visual effect is both beautiful and does not affect the user experience.

How to start trying?

If you are new to this property, you can start with the following steps:

• Find a background image or set a gradient background
• Put a text or translucent color block on it
• Try different mix-blend-mode values ??and observe the changes between them

For example, a set of structures:

 <div class="background"></div>
<h1 class="blend-text">Hello</h1>

Then set the background to .background and add the blend mode to .blend-text to see the effect.

Basically all that. Although it is simple to write, it is quite interesting to play.

The above is the detailed content of Exploring Visual Compositing with CSS mix-blend-mode. For more information, please follow other related articles on the PHP Chinese website!