随着HTML5的流行，许多网站开始介绍HTML5元素和属性的用法，以及各种教程，并且越来越多老的浏览器开始兼容HTML5。

本文作者编译了10段非常实用的HTML5代码片段，开发者可以直接拿过去使用，帮你快速完成HTML5项目的开发工作，你也可以把它们当做一个学习资源，进行参考。

1.HTML5编写的CSS Reset

CSS Reset也可以写成Reset CSS，即重设浏览器样式。

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/*   html5doctor.com Reset Stylesheet (Eric Meyer's Reset Reloaded + HTML5 baseline)  v1.4 2009-07-27 | Authors: Eric Meyer & Richard Clark  html5doctor.com/html-5-reset-stylesheet/*/
html, body, div, span, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
abbr, address, cite, code,
del, dfn, em, img, ins, kbd, q, samp,
small, strong, sub, sup, var,
b, i,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, figure, footer, header, hgroup, menu, nav, section, menu,
time, mark, audio, video {
margin:0;
padding:0;
border:0;
outline:0;
font-size:100%;
vertical-align:baseline;
background:transparent;
}
article, aside, figure, footer, header,
hgroup, nav, section { display:block; }
nav ul { list-style:none; }
blockquote, q { quotes:none; }
blockquote:before, blockquote:after,
q:before, q:after { content:''; content:none; }
a { margin:0; padding:0; font-size:100%; vertical-align:baseline; background:transparent; }
ins { background-color:#ff9; color:#000; text-decoration:none; }
mark { background-color:#ff9; color:#000; font-style:italic; font-weight:bold; }
del { text-decoration: line-through; }
abbr[title], dfn[title] { border-bottom:1px dotted #000; cursor:help; }
/* tables still need cellspacing="0" in the markup */
table { border-collapse:collapse; border-spacing:0; }
hr { display:block; height:1px; border:0; border-top:1px solid #ccc; margin:1em 0; padding:0; }
input, select { vertical-align:middle; }
/* END RESET CSS */

2.HTML5 Video with Flash Fallback

解释下该段代码，如果浏览器不支持HTML5视频播放，那么会自动跳回Flash播放。

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<video width="640" height="360" controls>
    <source src="__VIDEO__.MP4"  type="video/mp4" />
    <source src="__VIDEO__.OGV"  type="video/ogg" />
    <object width="640" height="360" type="application/x-shockwave-flash" data="__FLASH__.SWF">
        <param name="movie" value="__FLASH__.SWF" />
        <param name="flashvars" value="controlbar=over&image=__POSTER__.JPG&file=__VIDEO__.MP4" />
        <img src="__VIDEO__.JPG" width="640" height="360" alt="__TITLE__"
             title="No video playback capabilities, please download the video below" />
    </object>
</video>

3.HTML5 Starter页面

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<!DOCTYPE HTML>
<html>
    <head>
        <meta charset = "utf-8">
        <title></title>
        <link rel="stylesheet" href="style.css">
        <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
        <!--[if IE]><script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
        <script scr ="script/script.js"></script>
    </head>
<body>
     <header>
       <nav>
       </nav>
    </header>
    <footer>
    </footer>
  </body>
<html>

4.创建谷歌静态地图

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0 maximum-scale=1.0, user-scalable=no" />
    <title>Geo Location</title>
 
    <style type="text/css" media="screen">
        html{ height: 100%; }
        body{ height: 100%; margin: 0; padding: 0; }
        #map{ width: 100%; height: 100%; }
    </style>
        <!-- jQuery Min -->
        <script type="text/javascript" charset="utf-8" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.3/jquery.min.js"></script>
        <!-- Google Maps -->
        <script type="text/javascript" charset="utf-8" src="http://maps.google.com/maps/api/js?sensor=true"></script>
        <script charset="utf-8" type="text/javascript">
        mapWidth = screen.width;
        mapHeight = screen.height;
 
        $(document).ready(function(){
            var geo = navigator.geolocation;
            if( geo ){
                //Used for Static Maps
                geo.watchPosition( showLocation, mapError, { timeout: 5000, enableHighAccuracy: true } );
            }
            function createStaticMarker( markerColor, markerLabel, lat, lng ){
                return "&markers=color:" + markerColor + "|label:" + markerLabel + "|" + lat + "," + lng;
            }
 
            function createStaticMap( position ){
                var lat = position.coords.latitude;
                var lng = position.coords.longitude;
                var zoom = 20;
                var sensor = true;
 
                var img = $("<img>");
                    img.attr( { src: "http://maps.google.com/maps/api/staticmap?" +
                                "center=" +
                                lat + "," +
                                lng +
                                "&zoom=" + zoom +
                                "&size=" + mapWidth + "x" + mapHeight +
                                createStaticMarker( "blue", "1", lat, lng ) +
                                "&sensor=" + sensor } );
                    return img;
            }
            function showLocation( position ){
                var lat = position.coords.latitude;
                var lng = position.coords.longitude;
                var latlng = new google.maps.LatLng( lat, lng );
 
                $("#map").html( createStaticMap( position ) )
            }
            function mapError( e ){
                var error;
                switch( e.code ){
                    case 1:
                        error = "Permission Denied";
                    break;
                    case 2:
                        error = "Network or Satellites Down";
                    break;
                    case 3:
                        error = "GeoLocation timed out";
                    break;
                    case 0:
                        error = "Other Error";
                    break;
                }
                $("#map").html( error );
            }
        });
        </script>
    </head>
    <body>
        <div id="map">
        </div>
    </body>
</html>

5.纯HTML5 Starter模板

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<!DOCTYPE html>
    <html>
        <head>
            <meta charset="utf-8">
            <title>Untitled</title>
            <!--[if lt IE 9]>
            <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
            <![endif]-->
        </head>
        <body>
        </body>
    </html>

6.HTML5页面结构

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<!DOCTYPE HTML>
<html>
<head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
        <title>Your Website</title>
</head>
<body>
        <header>
                <nav>
                        <ul>
                                <li>Your menu</li>
                        </ul>
                </nav>
        </header>
        <section>
                <article>
                        <header>
                                <h2>Article title</h2>
                                <p>Posted on <time datetime="2009-09-04T16:31:24+02:00">September 4th 2009</time> by <a href="#">Writer</a> - <a href="#comments">6 comments</a></p>
                        </header>
                        <p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.</p>
                </article>
                <article>
                        <header>
                                <h2>Article title</h2>
                                <p>Posted on <time datetime="2009-09-04T16:31:24+02:00">September 4th 2009</time> by <a href="#">Writer</a> - <a href="#comments">6 comments</a></p>
                        </header>
                        <p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.</p>
                </article>
        </section>
        <aside>
                <h2>About section</h2>
                <p>Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p>
        </aside>
        <footer>
                <p>Copyright 2009 Your name</p>
        </footer>
</body>
</html>

7.上下文菜单

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<section contextmenu="mymenu">
<p>Yes, this section right here</p>
</section>
<menu type="context" id="mymenu">
  <menuitem label="Please do not steal our images" icon="img/forbidden.png"></menuitem>
  <menu label="Social Networks">
  <menuitem label="Share on Facebook" onclick="window.location.href = 'http://facebook.com/sharer/sharer.php?u=' + window.location.href;">   </menuitem>
  </menu>
</menu>

8.HTML5 Datalist

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<input name="frameworks" list="frameworks" />
<datalist id="frameworks">
    <option value="MooTools">
    <option value="Moobile">
    <option value="Dojo Toolkit">
    <option value="jQuery">
    <option value="YUI">
</datalist>

9.从谷歌地图上获取路线

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<form action="http://maps.google.com/maps" method="get" target="_blank">
   <label for="saddr">Enter your location</label>
   <input type="text" name="saddr" />
   <input type="hidden" name="daddr" value="350 5th Ave New York, NY 10018 (Empire State Building)" />
   <input type="submit" value="Get directions" />
</form>

10.HTML5电子邮件正则表达式验证

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<input type="text" title="email" required pattern="[^@]+@[^@]+\.[a-zA-Z]{2,6}" />

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