Detailed introduction to the main differences between CSS3 and CSS

CSS (Cascading Style Sheets) is a style sheet language used for web page layout. It is used to describe the performance of documents such as HTML, XML, and SVG. CSS specifications are relatively stable. Over the past 20 years, CSS has developed into a very mature technology.

CSS3 is an upgraded version of CSS (Cascading Style Sheets). It introduces many new features and provides web designers with more tools and flexibility, allowing them to design more complex and expressive web pages. The main differences between CSS3 and CSS will be introduced in detail below.

1. The increase in selectors

CSS3 has added many new selectors, such as attribute selectors, pseudo-class selectors, pseudo-element selectors, etc. These selectors can Make it easier to select specific elements for style modification.

2. Enhancement of animation effects

CSS3 introduces transition effects and animation effects, allowing web designers to achieve many animation effects and animations by setting simple CSS codes Interactive effects make web design more vivid and active.

3. Powerful background processing capabilities

CSS3 also enhances the background processing capabilities, such as multiple backgrounds, background image size adjustment, gradient background, etc. These features make Web designers can create more complex and beautiful background effects.

4. Enhancement of text effects

The text effects in CSS3 are also very powerful, such as text shadow, text gradient, text stroke, etc. These features can make the page more interesting ,unique.

5. Changes in layout methods

CSS3 provides more powerful layout methods, such as flexible box model (flex) and grid layout (grid), making web pages more Layout conveniently without having to use complex table layout methods like before.

Summary:

Compared with CSS, CSS3 provides more and better CSS features and tools, which can better meet the needs of web designers and make web design more outstanding. and changeable. However, since CSS3 is a new technology, not all browsers are currently fully capable of supporting it. Therefore, browser compatibility needs to be considered when using CSS3.

Whether it is CSS or CSS3, their main purpose is to enable web designers to better control the style of web pages. Good web design can attract people's attention and improve user experience, and is an indispensable part of web production. A missing aspect.

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