什麼是HTML5?

什麼是HTML5?

HTML5草案的前身名為Web Applications 1.0。
於2004年被WHATWG提出,於2007年被W3C接納,並成立了新的HTML工作團隊。
在2008年1月22日,第一份正式草案已公佈,預計將在2010年9月正式向公眾推薦。

HTML 5有兩大特點:
1. 強化了Web網頁的表現效能。
除了可描繪二D圖形外,還準備了用於播放視訊和音訊的標籤。

2. 追加了本地資料庫等Web應用的功能。
HTML 5 並非僅僅用來表示 Web 內容,它的使命是將 Web 帶入一個成熟的應用平台
在這個平台上,視訊,音訊,圖像,動畫,以及同電腦的互動都被標準化。


把以下引用中的代碼複製貼上到文字檔案裡,然後命名為html5.html即可
你的瀏覽器需要支援html5

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    <!doctype html><!-- simplified doctype works for all previous versions of HTML as well –>
    <!-- http://shandian.biz/ -->
    <!-- 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 lang="en" class="no-js ie6"><![endif]-->
    <!--[if (gt IE 6)|!(IE)]><!--><html lang="en" class="no-js"><!--<![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 class="home">
        <!-- ******************************************************************** -->
        <!-- 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>Easy HTML5 Template</h1>
            <h2>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 -->
        <!-- This is the main "div" that wraps the content generically; don't use "section" for this -->
        <div id="main">
            <!-- The first of two "section" elements for demo purposes; optional class added for styling (hs1 = "home section 1") -->
            <section class="hs1">
            <!-- 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>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>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> colloquial 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. ".hs1 footer") -->
                <footer>
                <!-- incite a riot: http://24ways.org/2009/incite-a-riot -->
                <p>Author: <cite>Louis Lazaris</cite></p>
                </footer>
            </section><!-- .hs1 -->
            <!-- This is another section; doesn't have header/footer because it's not required -->
            <section class="hs2">
            <h1>This is another section</h1>
            <p>This is some dummy content</p>
            </section><!-- .hs2 -->
        </div><!-- #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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