Understanding _web Web, Web standards, and the Consortium

Web design and development by the Web, with the refinement of the work, from the art of drawing to the Web page production, resulting in the Web front-end development of the word, Web front-end development is mainly to use

HTML, CSS, JavaScript technology, the art provided by the PSD file into an HTML page. At the same time, you need to consider SEO and background data. Web front-end, which is equivalent to connecting art, background

And a bridge between users.

Web standards are not a standard, but a collection of standards.

The Web page consists mainly of three parts: structure (Structure), performance (presentation) and behavior (Behavior).

The corresponding standards are also divided into three aspects: Structured standard language mainly includes HTML, XHTML and XML,

The performance standard language mainly includes the CSS,

The behavior standard mainly includes object model (such as the ECMAScript), and so on. [For example: JS Interactive operation]

Most of these standards have been drafted and published by the World Wide Web Consortium (Foreign language abbreviation: www), and some standards have been developed by other standards organizations, such as ECMA (European Computer

Manufacturers Association) of the ECMAScript standard.

The Web Standard has been standardized by the World's consortium, which is a code specification for practical programming: Sorting out the following points

1, for the structure requirements: (label specification can improve the search engine on the page crawl efficiency, SEO is very helpful)

1 label and attribute name mother to lowercase

2) label to close

3 label does not allow arbitrary nesting

2, for CSS and JS

1) Try to use the external chain CSS style sheet and JS script. The structure, performance and behavior are divided into three pieces, in line with the norms. At the same time improve the page selection soft speed, improve user experience.

2 style as far as possible do not use inline style, so that the structure and performance separation, tag ID and class attributes such as the name to do semantics, fewer tags, loading faster, user experience to mention

High, simple code maintenance, easy revision.

3 do not need to change the content of the page, you can manipulate the page style and data, improve the usability of the site.

Web standards