HTML5 basic template example code sharing
<!doctype html><!-- simplified doctype works for all previous versions of HTML as well --> <!-- Paul Irish's technique for targeting IE, modified to only target IE6, applied to the html element instead of body --> <!--[if lt IE 7 ]><html class="no-js ie6"><![endif]--> <!--[if (gt IE 6)|!(IE)]><!--><html><!--<![endif]--> <head> <!-- simplified character encoding --> <meta charset="utf-8"> <title>Easy HTML5 Template</title> <meta name="description" content="Easy HTML5 Template"> <meta name="author" content=""> <!-- Delete these two icon references once you've placed them in the root directory with these file names --> <!-- favicon 16x16 --> <link rel="shortcut icon" href="/favicon.ico"> <!-- apple touch icon 57x57 --> <link rel="apple-touch-icon" href="/apple-touch-icon.png"> <!-- Main style sheet. Change version number in query string to force styles refresh --> <!-- link element no longer needs type attribute --> <link rel="stylesheet" href="css/screen.css?v=1.0"> <!-- Modernizr for feature detection of CSS3 and HTML5; must be placed in the "head" --> <!-- Script tag no longer needs type attribute --> <script src="js/modernizr-1.6.min.js"></script> <!-- Remove the script reference below if you're using Modernizr --> <!--[if lt IE 9]> <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> </head> <!-- If possible, use the body as the container --> <!-- The "home" class is an example of a dynamic class created on the server for page-specific targeting --> <body> <!-- ******************************************************************** --> <!-- The content below is for demonstration of some common HTML5 elements --> <!-- More than likely you'll rip out everything except header/section/footer and start fresh --> <!-- First header has an ID so you can give it individual styles, and target stuff inside it --> <header id="hd1"> <!-- "hgroup" is used to make two headings into one, to prevent a new document node from forming --> <hgroup> <h1 id="Easy-nbsp-HTML-nbsp-Template">Easy HTML5 Template</h1> <h2 id="tagline">tagline</h2> </hgroup> <!-- Main nav, styled by targeting "#hd1 nav"; you can have more than one nav element per page --> <nav> <ul> <li><a href="#">Home</a></li> <li><a href="#">About</a></li> <li><a href="#">Services</a></li> <li><a href="#">Contact</a></li> </ul> </nav> </header><!-- #hd1 --> <section id="main"> <!-- Each section should begin with a new h1 (not h2), and optionally a header --> <!-- You can have more than one header/footer pair on a page --> <header> <h1 id="This-nbsp-is-nbsp-a-nbsp-Page-nbsp-Sub-nbsp-Title">This is a Page Sub Title</h1> </header> <p>Some content...</p> <!-- The h2 below is a sub heading relative to the h1 in this section, not for the whole document --> <h2 id="Demonstrating-nbsp-EM-nbsp-and-nbsp-STRONG">Demonstrating EM and STRONG</h2> <!-- "strong" is used for SEO and contextual hierarchy --> <p><strong>This text will have more importance (SEO-wise and contextually)</strong></p> <!-- "b" is used for stylistic offset of text that's NOT important contextually --> <p><b>This text has visual importance but has no contextual or SEO importance</b></p> <!-- "em" is used for colloquial-style emphasis --> <p>This is a <em>very</em> collooqial expression.</p> <!-- There can be multiple footers on each page --> <!-- Secondary headers and footers don't necesarily need ids; they can be targeted via context (i.e. "#main footer") --> <footer> <!-- incite a riot: http://24ways.org/2009/incite-a-riot --> <p>Author: <cite>Louis Lazaris</cite></p> </footer> </section><!-- #main --> <!-- The "aside" element could be a sidebar (outside an article or section) --> <!-- Or it could reference other tangentially-related content within an article or section --> <aside id="sidebar"> <p>Sidebar content</p> </aside> <!-- The main footer has an ID for targeting, similar to the main header --> <footer id="f1"> <p>copyright © year</p> </footer><!-- #f1 --> <!-- Remote jQuery with local fallback; taken from HTML5 Boilerplate http://html5boilerplate.com --> <!-- jQuery version might not be the latest; check jquery.com --> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script> <script>!window.jQuery && document.write(unescape('%3Cscript src="js/jquery-1.4.4.min.js"%3E%3C/script%3E'))</script> <!-- Below is your script file, which has a basic JavaScript design pattern that you can optionally use --> <!-- Keep this and plugin scripts at the bottom for faster page load; combining and minifying scripts is recommended --> <script src="js/general.js"></script> <!-- asynchronous analytics code by Mathias Bynens; change UA-XXXXX-X to your own code; http://mathiasbynens.be/notes/async-analytics-snippet --> <!-- this can also be placed in the <head> if you want page views to be tracked quicker --> <script> var _gaq = [['_setAccount', 'UA-XXXXX-X'], ['_trackPageview']]; (function(d, t) { var g = d.createElement(t), s = d.getElementsByTagName(t)[0]; g.async = true; g.src = ('https:' == location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; s.parentNode.insertBefore(g, s); })(document, 'script'); </script> </body> </html>
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There is no difference between HTML5 and H5, which is the abbreviation of HTML5. 1.HTML5 is the fifth version of HTML, which enhances the multimedia and interactive functions of web pages. 2.H5 is often used to refer to HTML5-based mobile web pages or applications, and is suitable for various mobile devices.

HTML5 is the latest version of the Hypertext Markup Language, standardized by W3C. HTML5 introduces new semantic tags, multimedia support and form enhancements, improving web structure, user experience and SEO effects. HTML5 introduces new semantic tags, such as, ,, etc., to make the web page structure clearer and the SEO effect better. HTML5 supports multimedia elements and no third-party plug-ins are required, improving user experience and loading speed. HTML5 enhances form functions and introduces new input types such as, etc., which improves user experience and form verification efficiency.

How to write clean and efficient HTML5 code? The answer is to avoid common mistakes by semanticizing tags, structured code, performance optimization and avoiding common mistakes. 1. Use semantic tags such as, etc. to improve code readability and SEO effect. 2. Keep the code structured and readable, using appropriate indentation and comments. 3. Optimize performance by reducing unnecessary tags, using CDN and compressing code. 4. Avoid common mistakes, such as the tag not closed, and ensure the validity of the code.

H5 improves web user experience with multimedia support, offline storage and performance optimization. 1) Multimedia support: H5 and elements simplify development and improve user experience. 2) Offline storage: WebStorage and IndexedDB allow offline use to improve the experience. 3) Performance optimization: WebWorkers and elements optimize performance to reduce bandwidth consumption.

HTML5 code consists of tags, elements and attributes: 1. The tag defines the content type and is surrounded by angle brackets, such as. 2. Elements are composed of start tags, contents and end tags, such as contents. 3. Attributes define key-value pairs in the start tag, enhance functions, such as. These are the basic units for building web structure.

HTML5 is a key technology for building modern web pages, providing many new elements and features. 1. HTML5 introduces semantic elements such as, , etc., which enhances web page structure and SEO. 2. Support multimedia elements and embed media without plug-ins. 3. Forms enhance new input types and verification properties, simplifying the verification process. 4. Offer offline and local storage functions to improve web page performance and user experience.

Best practices for H5 code include: 1. Use correct DOCTYPE declarations and character encoding; 2. Use semantic tags; 3. Reduce HTTP requests; 4. Use asynchronous loading; 5. Optimize images. These practices can improve the efficiency, maintainability and user experience of web pages.

Web standards and technologies have evolved from HTML4, CSS2 and simple JavaScript to date and have undergone significant developments. 1) HTML5 introduces APIs such as Canvas and WebStorage, which enhances the complexity and interactivity of web applications. 2) CSS3 adds animation and transition functions to make the page more effective. 3) JavaScript improves development efficiency and code readability through modern syntax of Node.js and ES6, such as arrow functions and classes. These changes have promoted the development of performance optimization and best practices of web applications.


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