HTML5基礎模板的實例程式碼分享
<!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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H5通過多媒體支持、離線存儲和性能優化提升網頁用戶體驗。 1)多媒體支持:H5的和元素簡化開發,提升用戶體驗。 2)離線存儲:WebStorage和IndexedDB允許離線使用,提升體驗。 3)性能優化:WebWorkers和元素優化性能,減少帶寬消耗。

HTML5代碼由標籤、元素和屬性組成:1.標籤定義內容類型,用尖括號包圍,如。 2.元素由開始標籤、內容和結束標籤組成,如內容。 3.屬性在開始標籤中定義鍵值對,增強功能,如。這些是構建網頁結構的基本單位。

HTML5是構建現代網頁的關鍵技術,提供了許多新元素和功能。 1.HTML5引入了語義化元素如、、等,增強了網頁結構和SEO。 2.支持多媒體元素和,無需插件即可嵌入媒體。 3.表單增強了新輸入類型和驗證屬性,簡化了驗證過程。 4.提供了離線和本地存儲功能,提升了網頁性能和用戶體驗。

H5代碼的最佳實踐包括:1.使用正確的DOCTYPE聲明和字符編碼;2.採用語義化標籤;3.減少HTTP請求;4.使用異步加載;5.優化圖像。這些實踐能提升網頁的效率、可維護性和用戶體驗。

Web标准和技术从HTML4、CSS2和简单的JavaScript演变至今,经历了显著的发展。1)HTML5引入了Canvas、WebStorage等API,增强了Web应用的复杂性和互动性。2)CSS3增加了动画和过渡功能,使页面效果更加丰富。3)JavaScript通过Node.js和ES6的现代化语法,如箭头函数和类,提升了开发效率和代码可读性,这些变化推动了Web应用的性能优化和最佳实践的发展。

H5不僅僅是HTML5的簡稱,它代表了一個更廣泛的現代網頁開發技術生態:1.H5包括HTML5、CSS3、JavaScript及相關API和技術;2.它提供更豐富、互動、流暢的用戶體驗,能在多設備上無縫運行;3.使用H5技術棧可以創建響應式網頁和復雜交互功能。

H5與HTML5指的是同一個東西,即HTML5。 HTML5是HTML的第五個版本,帶來了語義化標籤、多媒體支持、畫布與圖形、離線存儲與本地存儲等新功能,提升了網頁的表現力和交互性。

H5referstoHTML5,apivotaltechnologyinwebdevelopment.1)HTML5introducesnewelementsandAPIsforrich,dynamicwebapplications.2)Itsupportsmultimediawithoutplugins,enhancinguserexperienceacrossdevices.3)SemanticelementsimprovecontentstructureandSEO.4)H5'srespo


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