CSS3中优雅降级和渐进增强的区别
下面是我给大家整理的CSS3中优雅降级和渐进增强的区别，有兴趣的同学可以去看看。
渐进增强 progressive enhancement：针对低版本浏览器进行构建页面，保证最基本的功能，然后再针对高级浏览器进行效果、交互等改进和追加功能达到更好的用户体验
优雅降级 graceful degradation：一开始就构建完整的功能，然后再针对低版本浏览器进行兼容
区别：优雅降级是从复杂的现状开始，并试图减少用户体验的供给，而渐进增强则是从一个非常基础的，能够起作用的版本开始，并不断扩充，以适应未来环境的需要。降级（功能衰减）意味着往回看；而渐进增强则意味着朝前看，同时保证其根基处于安全地带
“优雅降级”观点认为应该针对那些最高级、最完善的浏览器来设计网站。而将那些被认为“过时”或有功能缺失的浏览器下的测试工作安排在开发周期的最后阶段，并把测试对象限定为主流浏览器（如 IE、Mozilla 等）的前一个版本。
在这种设计范例下，旧版的浏览器被认为仅能提供“简陋却无妨 (poor, but passable)” 的浏览体验。你可以做一些小的调整来适应某个特定的浏览器。但由于它们并非我们所关注的焦点，因此除了修复较大的错误之外，其它的差异将被直接忽略。
“渐进增强”观点则认为应关注于内容本身。
内容是我们建立网站的诱因。有的网站展示它，有的则收集它，有的寻求，有的操作，还有的网站甚至会包含以上的种种，但相同点是它们全都涉及到内容。这使得“渐进增强”成为一种更为合理的设计范例。这也是它立即被 Yahoo! 所采纳并用以构建其“分级式浏览器支持 (Graded Browser Support)”策略的原因所在。
上面是我整理给大家的CSS3中优雅降级和渐进增强的区别，希望今后会对大家有帮助。
相关文章：
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
How to achieve wave effect with pure CSS3? (code example)
Jun 28, 2022 pm 01:39 PM
How to achieve wave effect with pure CSS3? This article will introduce to you how to use SVG and CSS animation to create wave effects. I hope it will be helpful to you!
Use CSS skillfully to realize various strange-shaped buttons (with code)
Jul 19, 2022 am 11:28 AM
This article will show you how to use CSS to easily realize various weird-shaped buttons that appear frequently. I hope it will be helpful to you!
How to hide elements in css without taking up space
Jun 01, 2022 pm 07:15 PM
Two methods: 1. Using the display attribute, just add the "display:none;" style to the element. 2. Use the position and top attributes to set the absolute positioning of the element to hide the element. Just add the "position:absolute;top:-9999px;" style to the element.
How to implement lace borders in css3
Sep 16, 2022 pm 07:11 PM
In CSS, you can use the border-image attribute to achieve a lace border. The border-image attribute can use images to create borders, that is, add a background image to the border. You only need to specify the background image as a lace style; the syntax "border-image: url (image path) offsets the image border width inward. Whether outset is repeated;".
It turns out that text carousel and image carousel can also be realized using pure CSS!
Jun 10, 2022 pm 01:00 PM
How to create text carousel and image carousel? The first thing everyone thinks of is whether to use js. In fact, text carousel and image carousel can also be realized using pure CSS. Let’s take a look at the implementation method. I hope it will be helpful to everyone!
How to enlarge the image by clicking the mouse in css3
Apr 25, 2022 pm 04:52 PM
Implementation method: 1. Use the ":active" selector to select the state of the mouse click on the picture; 2. Use the transform attribute and scale() function to achieve the picture magnification effect, the syntax "img:active {transform: scale(x-axis magnification, y Axis magnification);}".
css3 what is adaptive layout
Jun 02, 2022 pm 12:05 PM
Adaptive layout, also known as "responsive layout", refers to a web page layout that can automatically recognize the screen width and make corresponding adjustments; such a web page can be compatible with multiple different terminals instead of making a specific version for each terminal. . Adaptive layout was born to solve the problem of mobile web browsing, and can provide a good user experience for users using different terminals.
Does css3 animation effect have deformation?
Apr 28, 2022 pm 02:20 PM
The animation effect in css3 has deformation; you can use "animation: animation attribute @keyframes ..{..{transform: transformation attribute}}" to achieve deformation animation effect. The animation attribute is used to set the animation style, and the transform attribute is used to set the deformation style. .
