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HTML5 is the new standard for HTML, XHTML and HTML DOM. HTML5 is the fifth version of HTML. Many elements have been deleted or modified in HTML5. HTML5 is designed to support multimedia on mobile devices, and HTML In comparison, the depth and breadth have been further improved.
The operating environment of this tutorial: Windows 10 system, HTML5 version, Dell G3 computer.
HTML stands for Hypertext Markup Language and is used to design web pages using markup language. HTML is a combination of hypertext, which defines the links between web pages, and markup language, which is used to define text documents within markup that define the structure of a web page. This language is used to annotate (in computer annotation) text so that a machine can understand it and manipulate the text accordingly.
Most markup (such as HTML) languages are human-readable. The language uses tags to define what operations must be performed on text. It is used to structure and render content on web pages.
HTML5 is the fifth version of HTML. Many elements have been deleted or modified in HTML5.
The difference between HTML5 and HTML
First of all, HTML5 has gone far beyond the scope of markup language. It is designed to support multimedia on mobile devices, and HTML In comparison, the depth and breadth have been further improved.
Next, let’s take a look at the declaration file types of the two:
HTML:
HTML5
As you can see from the above, in terms of document declaration, the declaration code of HTML is very long and complicated, while the declaration of HTML5 is simpler and easier to remember, so HTML5 is more beneficial to programmers than HTML. Read and develop quickly.
In addition, the structural semantics of the two are also different. HTML does not have structural semantic tags, which are usually named after
HTML5 has added a powerful drawing function. Through the drawing function and JS, animations and pictures can be realized. But HTML4.0 does not. In HTML5, Canvas and SVG can be used for drawing. Canvas is equivalent to a canvas and can draw 2D graphics through JavaScript. Canvas is rendered pixel by pixel. SVG is Scalable Vector Graphics, used to define vector-based graphics for the web. SVG strictly follows XML syntax. Its image files are readable and easy to modify and edit. They can be searched, indexed, scripted, or compressed. Can be printed with high quality at any resolution.
In addition to the above points, the powerful HTML5 also adds a new video tag. This function is not available in HTML4.0. Inserting a video using HTML4.0 requires a long section of code, but using HTML5 only requires the video tag.
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Summary:
1. Document declaration difference
2. Structural semantic difference
html: There are no tags that reflect structural semantics, such as:
html5: Added many semantic tags, such as:
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