亚洲国产日韩欧美一区二区三区,精品亚洲国产成人av在线,国产99视频精品免视看7,99国产精品久久久久久久成人热,欧美日韩亚洲国产综合乱

Table of Contents
CSS animation inheritance mechanism
Home Web Front-end CSS Tutorial Using Custom Properties to Wrangle Variations in Keyframe Animations

Using Custom Properties to Wrangle Variations in Keyframe Animations

Apr 16, 2025 am 11:18 AM

Use CSS custom properties to flexibly control variants of keyframe animation without the need for a preprocessor! This article will explore how to use CSS and custom properties only to implement customization of keyframe animations, avoiding the additional dependencies brought by using preprocessors such as mixins.

Using Custom Properties to Wrangle Variations in Keyframe Animations

Have you ever wondered how to customize CSS animation keyframes without relying on a preprocessor? I often turn to preprocessors for this, but wouldn't it be better to just use native CSS if I can get rid of this dependency?

It turns out that control of keyframe animation variants can be achieved with CSS alone, thanks to CSS custom properties! Let's dig into how CSS keyframes work and how to leverage CSS and custom properties to enhance them.

CSS animation inheritance mechanism

When we apply animation to elements, we can customize some properties such as duration, delay, etc. Let's take a look at a simple example: there are two classes .walk and .run, which both use the same animation (named breath), but the animation execution speed of .run is faster than .walk (0.5s and 2s respectively).

 <code>@keyframes breath { from { transform: scale(0.5); } to { transform: scale(1.5); } } /* 兩者共享相同的動(dòng)畫,但行走比奔跑慢*/ .walk { animation: breath 2s alternate; } .run { animation: breath 0.5s alternate; }</code>

Each time an animation is reused, its behavior varies according to the properties we assign it . Therefore, it can be said that the behavior of the animation inherits from the elements in which it is applied.

But how should the rules of animation (the scaling ratio in this example) be handled? Return to the example of breath animation: The .walk class performs breath animation slowly, but also requires a larger scaling ratio, so we need to set its scaling value to be larger than the .run class, while the .run class adopts smaller and more frequent scaling changes.

In pure CSS, it is common to copy the original animation and then adjust the values ??directly in the class:

 <code>@keyframes breath { /* 與之前相同... */ } /* 與breath類似,但縮放比例不同*/ @keyframes breathDeep { from { transform: scale(0.3); } to { transform: scale(1.7); } } .walk { animation: breathDeep 2s alternate; } .run { animation: breath 0.5s alternate; }</code>

While this approach works, a better solution is to reuse the properties and values ??of the animation at the same time! How to do it? Use the inheritance mechanism of CSS variables! Let's see how to implement it:

 <code>/* breath動(dòng)畫的行為基于繼承的CSS變量值*/ @keyframes breath { from { transform: scale(var(--scaleStart)); } to { transform: scale(var(--scaleEnd)); } } .walk { --scaleStart: 0.3; --scaleEnd: 1.7; animation: breath 2s alternate; } .run { --scaleStart: 0.8; --scaleEnd: 1.2; animation: breath 0.5s alternate; }</code>

Isn't it cool? Now we can get different effects from the same animation without writing repeated animations!

If you need to go a step further, remember that we can also update CSS custom properties using JavaScript, which not only updates the root variables, but also the variables of specific elements. I find this very powerful because we can create more efficient animations with JavaScript without losing native optimizations for CSS animations. This is a win-win situation!

The above is the detailed content of Using Custom Properties to Wrangle Variations in Keyframe Animations. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undress AI Tool

Undress AI Tool

Undress images for free

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

PHP Tutorial
1488
72
CSS tutorial for creating loading spinners and animations CSS tutorial for creating loading spinners and animations Jul 07, 2025 am 12:07 AM

There are three ways to create a CSS loading rotator: 1. Use the basic rotator of borders to achieve simple animation through HTML and CSS; 2. Use a custom rotator of multiple points to achieve the jump effect through different delay times; 3. Add a rotator in the button and switch classes through JavaScript to display the loading status. Each approach emphasizes the importance of design details such as color, size, accessibility and performance optimization to enhance the user experience.

Addressing CSS Browser Compatibility issues and prefixes Addressing CSS Browser Compatibility issues and prefixes Jul 07, 2025 am 01:44 AM

To deal with CSS browser compatibility and prefix issues, you need to understand the differences in browser support and use vendor prefixes reasonably. 1. Understand common problems such as Flexbox and Grid support, position:sticky invalid, and animation performance is different; 2. Check CanIuse confirmation feature support status; 3. Correctly use -webkit-, -moz-, -ms-, -o- and other manufacturer prefixes; 4. It is recommended to use Autoprefixer to automatically add prefixes; 5. Install PostCSS and configure browserslist to specify the target browser; 6. Automatically handle compatibility during construction; 7. Modernizr detection features can be used for old projects; 8. No need to pursue consistency of all browsers,

Creating custom shapes with css clip-path Creating custom shapes with css clip-path Jul 09, 2025 am 01:29 AM

Use the clip-path attribute of CSS to crop elements into custom shapes, such as triangles, circular notches, polygons, etc., without relying on pictures or SVGs. Its advantages include: 1. Supports a variety of basic shapes such as circle, ellipse, polygon, etc.; 2. Responsive adjustment and adaptable to mobile terminals; 3. Easy to animation, and can be combined with hover or JavaScript to achieve dynamic effects; 4. It does not affect the layout flow, and only crops the display area. Common usages are such as circular clip-path:circle (50pxatcenter) and triangle clip-path:polygon (50%0%, 100 0%, 0 0%). Notice

What is the difference between display: inline, display: block, and display: inline-block? What is the difference between display: inline, display: block, and display: inline-block? Jul 11, 2025 am 03:25 AM

Themaindifferencesbetweendisplay:inline,block,andinline-blockinHTML/CSSarelayoutbehavior,spaceusage,andstylingcontrol.1.Inlineelementsflowwithtext,don’tstartonnewlines,ignorewidth/height,andonlyapplyhorizontalpadding/margins—idealforinlinetextstyling

Styling visited links differently with CSS Styling visited links differently with CSS Jul 11, 2025 am 03:26 AM

Setting the style of links you have visited can improve the user experience, especially in content-intensive websites to help users navigate better. 1. Use CSS's: visited pseudo-class to define the style of the visited link, such as color changes; 2. Note that the browser only allows modification of some attributes due to privacy restrictions; 3. The color selection should be coordinated with the overall style to avoid abruptness; 4. The mobile terminal may not display this effect, and it is recommended to combine it with other visual prompts such as icon auxiliary logos.

How to create responsive images using CSS? How to create responsive images using CSS? Jul 15, 2025 am 01:10 AM

To create responsive images using CSS, it can be mainly achieved through the following methods: 1. Use max-width:100% and height:auto to allow the image to adapt to the container width while maintaining the proportion; 2. Use HTML's srcset and sizes attributes to intelligently load the image sources adapted to different screens; 3. Use object-fit and object-position to control image cropping and focus display. Together, these methods ensure that the images are presented clearly and beautifully on different devices.

Demystifying CSS Units: px, em, rem, vw, vh comparisons Demystifying CSS Units: px, em, rem, vw, vh comparisons Jul 08, 2025 am 02:16 AM

The choice of CSS units depends on design requirements and responsive requirements. 1.px is used for fixed size, suitable for precise control but lack of elasticity; 2.em is a relative unit, which is easily caused by the influence of the parent element, while rem is more stable based on the root element and is suitable for global scaling; 3.vw/vh is based on the viewport size, suitable for responsive design, but attention should be paid to the performance under extreme screens; 4. When choosing, it should be determined based on whether responsive adjustments, element hierarchy relationships and viewport dependence. Reasonable use can improve layout flexibility and maintenance.

What are common CSS browser inconsistencies? What are common CSS browser inconsistencies? Jul 26, 2025 am 07:04 AM

Different browsers have differences in CSS parsing, resulting in inconsistent display effects, mainly including the default style difference, box model calculation method, Flexbox and Grid layout support level, and inconsistent behavior of certain CSS attributes. 1. The default style processing is inconsistent. The solution is to use CSSReset or Normalize.css to unify the initial style; 2. The box model calculation method of the old version of IE is different. It is recommended to use box-sizing:border-box in a unified manner; 3. Flexbox and Grid perform differently in edge cases or in old versions. More tests and use Autoprefixer; 4. Some CSS attribute behaviors are inconsistent. CanIuse must be consulted and downgraded.

See all articles