HTML5 Overview
HTML5 is one of the most popular versions of the HTML language. It supports audio and video, offline storage, mobile terminals, tag attributes and more. Tags such as
HTML6 Outlook
Have you ever wished you could use custom tags in HTML? For example: use Like XML, HTML6 should support namespace, such as: xmlns:xhtml="http://www.w3.org/1999/xhtml" HTML6 code sample : In the above code, you may have noticed some strange HTML6 tags are preceded by namespaces, such as: , 1. 2. 3. 4. 5. 6. 7. is similar to tags, the difference is that only has one attribute: "href". 8. 9. Like HTML5, HTML6 also has two tag types: single tag and double tag Single tags do not require the end character '/' Or some new features he hopes HTML6 can support. <!DOCTYPE html> <html:html> <html:head> <html:title>A Look Into HTML6</html:title> <html:meta type="title" value="Page Title"> <html:meta type="description" value="HTML example with namespaces"> <html:link src="css/mainfile.css" title="Styles" type="text/css"> <html:link src="js/mainfile.js" title="Script" type="text/javascript"> </html:head> <html:body> <header> <logo> <html:media type="image" src="images/xyz.png"> </logo> <nav> <html:a href="/img1">a1</a> <html:a href="/img2">a2</a> </nav> </header> <content> <article> <h1 id="Heading-of-main-article">Heading of main article</h1> <h2 id="Sub-heading-of-main-article">Sub-heading of main article</h2> <p>[...]</p> <p>[...]</p> </article> <article> <h1 id="The-concept-of-HTML">The concept of HTML6</h1> <h2 id="Understanding-the-basics">Understanding the basics</h2> <p>[...]</p> </article> </content> <footer> <copyright>This site is © to Anonymous 2014</copyright> </footer> </html:body> </html:html>
HTML6 APIs
<!DOCTYPE html> <html:html>// this is equivalent to <html> tag written in previous HTML versions <!-- sample of HTML document --> </html:html>
<!DOCTYPE html> <html:html> <html:head> <!-- Main content would come here, like the <html:title> tag --> </html:head> </html:html>
<!DOCTYPE html> <html:html> <html:head> <html:title>A Look Into HTML6</html:title> </html:head> </html:html>
<!DOCTYPE html> <html:html> <html:head> <html:title>A Look Into HTML6</html:title> <html:meta type="description" value="HTML example with namespaces"> </html:head> </html:html>
<!DOCTYPE html> <html:html> <html:head> <html:title>A Look Into HTML6</html:title> <html:link src="js/mainfile.js" title="Script" type="text/javascript"> </html:head> </html:html>
<!DOCTYPE html> <html:html> <html:head> <html:title>A Look Into HTML6</html:title> </html:head> <html:body> <!-- This is where your website content is placed --> </html:body> </html:html>
<!DOCTYPE html> <html:html> <html:head> <html:title>A Look Into HTML6</html:title> </html:head> <html:body> <html:a href="http://siteurl">Go to siteurl.com!</html:a> </html:body> </html:html>
<!DOCTYPE html> <html:html> <html:head> <html:title>A Look Into HTML6</html:title> </html:head> <html:body> <html:button>Click Here</html:button> </html:body> </html:html>
,
<!DOCTYPE html> <html:html> <html:head> <html:title>A Look Into HTML6</html:title> </html:head> <html:body> <!-- Image would come here --> <html:media type="image"> <!-- Video doesn't need a type --> <html:media src="videos/slide.mov"> </html:body> </html:html>
Overview of Tag types
<html:meta type="author" content="single tag"> <html:meta type="author" content="double tag" />

HTML, CSS and JavaScript are the core technologies for building modern web pages: 1. HTML defines the web page structure, 2. CSS is responsible for the appearance of the web page, 3. JavaScript provides web page dynamics and interactivity, and they work together to create a website with a good user experience.

The function of HTML is to define the structure and content of a web page, and its purpose is to provide a standardized way to display information. 1) HTML organizes various parts of the web page through tags and attributes, such as titles and paragraphs. 2) It supports the separation of content and performance and improves maintenance efficiency. 3) HTML is extensible, allowing custom tags to enhance SEO.

The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.

The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.

The future of HTML is full of infinite possibilities. 1) New features and standards will include more semantic tags and the popularity of WebComponents. 2) The web design trend will continue to develop towards responsive and accessible design. 3) Performance optimization will improve the user experience through responsive image loading and lazy loading technologies.

The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.

HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.

HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.


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