learning target:
1. What is a web page
2. What is HTML
3. What is the formation of a web page
4. Common browsers and kernels
5. What is the web standard
study-time:
January 22, 2021
Learning output:
1. Web page
Website: refers to a collection of
webpages related to specific content made on the Internet according to certain rules, using html, etc. Webpage: a page in a website, usually a file in html format, which is
usually read through a browser The web pages we see often end with html or htm suffix, so they are commonly called html files.
2.HTML
HTML refers to Hypertext Markup Language. It is a language used to describe web pages.
HTML is not a programming language, but a markup language. A
markup language is a set of markup tags.
3. Formation of the web page
A webpage is composed of webpage elements, which are described by HTML tags, and then displayed to the user through browser analysis.
4. Common browsers and kernels
Google Firefox Safari Opera iE (international commonly used browser)
360 and other browsers are domestic browsers, not many internationally used
Browser kernel (rendering engine): Responsible for reading the content of the webpage, sorting out the information, calculating the display mode of the webpage and displaying the page.
5.web standards
5.1 Web standards are a collection of a series of standards formulated by the W3C organization and other standardization organizations. W3C (World Wide Web Consortium) is the most famous international standardization organization.
Different browsers have slightly different display pages or layouts, so web standards are required.
5.2 The composition of web standards
Structure: Structure is used to sort and classify web page elements. At this stage, the main learning is html
performance: performance is used to set web pages The layout, color, size and other appearance styles of elements mainly refer to css.
Behavior: Behavior refers to the definition of web page model and the compilation of interaction. At this stage, I mainly learn
the best experience solution proposed by the JavaScript Web standard: the separation of structure, style, and behavior.
Simple understanding: the structure is written in the HTML file, the performance is written in the css file, and the behavior is written in the JavaScript file