The application of hypertext markup language (hypertext markup language), standard general markup language. HTML is not a programming language, but a markup language (markup language), which is necessary for web page making. "Hypertext" means that a page can contain pictures, links, and even music, programs, and other non-text elements. To create a web page, you need to set up a server to debug your web page, there are many kinds of iis, etc., can be found on the Internet.

Cascading style sheets (: Cascading Style Sheets) is a computer language used to represent file styles, such as HTML (an application of Standard Generalized markup language) or XML (a subset of Standard Generalized markup language). CSS can not only modify the web page statically, but also format the elements of the web page dynamically using various scripting languages. CSS can precisely control the layout of elements in a web page at the pixel level, supports almost all font size styles, and can edit page objects and model styles.

IV+CSS is the standard of Web design, and it is a method of web page layout. Different from the traditional way of positioning through table (table) layout, it can achieve the separation of web content and performance. When it comes to DIV+CSS combinations, start with XHTML. XHTML is a new language optimized and improved on the basis of HTML (a subset of the standard general markup language). The goal is to meet the needs of more network applications based on XML applications and strong data conversion capabilities in the future. Database, in short, can be seen as an electronic filing cabinet-a place where electronic documents are stored, where users can add, intercept, update, delete and other operations on the data in the document.

A "database" is a collection of data stored together in some way that can be shared with multiple users, with as little redundancy as possible, and independent of the application. Dynamic language means that a program can change its structure when it is running: new functions can be introduced, existing functions can be deleted, type checking is carried out at run time, and the advantage is that it is easy to read and clear, and the disadvantage is that it is not convenient to debug.

JavaScript is a literal scripting language, a dynamically typed, weakly typed, prototype-based language with built-in support types. Its interpreter, called the JavaScript engine, is part of the browser and is widely used as a client-side scripting language. It is first used in HTML (applications under the standard generic markup language) to add dynamic functionality to HTML pages. photoshop mainly deals with digital images made up of pixels. Using many of its editing and drawing tools, we can edit pictures effectively. pS has a variety of functions, including image, graphics, text, video, publishing and so on.