backdrop-filter can enhance the hierarchy of web pages through blur and other effects, and is suitable for pop-up windows, cards and other components. 1. Use blur to achieve the frosted glass effect, such as .modal { backdrop-filter: blur(10px); background-color: rgba(255, 255, 255, 0.6); }, and it is recommended to add the -webkit- prefix to improve compatibility; 2. Combining multiple filter functions such as brightness, contrast, etc. can create a richer visual style, but pay attention to the order affecting the effect; 3. Pay attention to the impact of performance consumption, browser compatibility and hierarchy structure on display effect, and adopt a downgrade solution to ensure the consistency of the page experience.
Sometimes when you want to make web elements look more layered or have a bit of frosted glass texture, backdrop-filter comes in handy. It does not only act on its own content like ordinary filters, but can "treat" the background and make effects similar to frosted glass, blur, contrast adjustments, etc. It is especially suitable for pop-up windows, cards, and navigation bars, which require visual separation from the background.
1. Simple implementation of the blur effect
This is one of the most common uses of backdrop-filter . For example, if you want to make a translucent pop-up window but don’t want the background to be completely obscured, you can add a blur filter:
.modal {
backdrop-filter: blur(10px);
background-color: rgba(255, 255, 255, 0.6);
}In this way, the user sees the picture after the background is blurred, and at the same time, they can see the content in the pop-up window clearly. This effect performs well in mobile or modern browsers, but may not be supported in some older browsers, so you need to pay attention to compatibility.
A common practice is to add -webkit- prefix to adapt to Safari and iOS browsers:
.modal {
-webkit-backdrop-filter: blur(10px);
backdrop-filter: blur(10px);
background-color: rgba(255, 255, 255, 0.6);
}2. Use multiple filters in combination to create a richer visual style
backdrop-filter is not only blur, but also can superimpose multiple filter functions, such as brightness, contrast, grayscale, etc. You can freely combine according to your design requirements:
.card {
backdrop-filter: blur(5px) brightness(90%) contrast(120%);
}The above code means: first blur 5px, then slightly dim to enhance contrast. This will make the card look more textured and easier to "jump out" from the background.
Some commonly used filter functions include:
-
blur(px): degree of blur -
brightness(%): brightness -
contrast(%): contrast -
grayscale(%): grayscale -
saturate(%): saturate
Pay attention to the order when combining, different orders will affect the final effect. For example, blurring first and then adjusting the brightness will be different from the visual feeling of brightening first and then blurring it out.
3. Pay attention to performance and compatibility issues
Although backdrop-filter is cool, it is not omnipotent. Please pay attention to the following points when using it:
- High performance consumption : especially when a large range of blur effects is used, page scrolling may be stuttered, especially on low-end devices.
- Browser compatibility is limited : Currently, mainstream browsers support it, but old antiques like IE are not good. If the project requires compatibility with old browsers, it is best to prepare alternate styles.
- The hierarchy affects the display effect :
backdrop-filteris rendered based on the area behind the element, so the parent container cannot haveoverflow: hiddenor some cropping settings, otherwise the filter effect will not be visible.
Solution:
- The control fuzzy value should not be too large, generally 5~10px is enough
- Use only on key UIs to avoid large-scale abuse
- Add
-webkit-prefix to improve compatibility - Provide downgrade solutions for unsupported browsers, such as pure translucent backgrounds
Basically that's it. Using backdrop-filter rationally can make your web page more visually attractive and not complicated to operate. The key is not to forget to consider performance and compatibility.
The above is the detailed content of Using CSS backdrop-filter for unique effects. For more information, please follow other related articles on the PHP Chinese website!
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