What are the advantages of css

Advantages of css: 1. Save time; write CSS once and can be reused multiple times in multiple HTML pages through external introduction. 2. Greatly reduce page code, improve page loading speed, and reduce bandwidth costs. 3. Easy to maintain. 4. Multi-device compatibility. 5. The structure is clear and easier to search by search engines.

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

What is CSS

CSS is the abbreviation of Cascading Style Sheet, which is translated into Chinese as "cascading style sheet". It is used to control the style of web pages and allows the style to be A markup language that separates code from web page content.

Simply put, the introduction of CSS is to make the HTML language better adapt to the art design of the page.

CSS was reviewed and recommended by the W3C in 1996. The introduction of CSS immediately triggered new climaxes in web design, and excellent pages designed using CSS emerged one after another.

W3C is the abbreviation of World Wide Web Consortium, which is translated as "World Wide Web Alliance" in Chinese. It is a Web standardization organization. In addition to developing CSS standards, W3C has also developed more than 200 web technology standards such as HTML and XML.

CSS is based on HTML language and provides rich formatting functions, such as fonts, colors, backgrounds and overall layout, etc., and web designers can set different styles for various visual browsers Styles, including monitors, printers, tablets, phones and other mobile devices.

CSS is mainly used to design the style of web pages and beautify web pages; it can not only statically modify web pages, but also dynamically format various elements of web pages in conjunction with various scripting languages.

CSS can perform pixel-level precise control over the layout of element positions in web pages, supports almost all font size styles, and has the ability to edit web page objects and model styles.

Advantages of css

(1) Save time: You can write CSS once and then reuse it multiple times in multiple HTML pages through external introduction

(2) Greatly reduce page code, improve page loading speed, and reduce bandwidth costs: By using CSS, you do not need to write HTML tag attributes every time, you only need to write a CSS rule for a tag and apply it to the tag of all instances, so the code is greatly reduced which means shorter download times.

(3) Easy to maintain: If you want to make global changes, you only need to change the style, and all elements in all web pages will be updated automatically.

(4)Multi-device compatibility: Style sheets allow content to be optimized for many different types of devices.

(5) The structure is clear and more convenient for search engines. By replacing nested tags with HTML that contains only structured content, search engines will find your content more efficiently and may give you a higher ranking.

(Learning video sharing: css video tutorial)

The above is the detailed content of What are the advantages of css. For more information, please follow other related articles on the PHP Chinese website!