HTML5.1新增14项新增技术

这篇文章主要给大家介绍了HTML 5.1新增的14项特性与应用示例，文中介绍的非常详细，对大家具有一定的参考价值，有需要的朋友们下面来一起看看吧。

<a href="#" target="_blank" rel="noopener">
  The link won't make trouble anymore
</a> 

<article>
  <h1>The Headline of todays news </h1>
  <figure>
    <img src="petrolimage.jpeg" alt="Petrol price drops">
    <figcaption>A man fueling up his car at petrol station</figcaption>
  </figure>
  <p>This is the forth hike in petrol prices in two month and the third in case of diesel in one fortnight.</p>
</article> 

<p spellcheck="true">
 <label>Name: <input spellcheck=" false" id="textbox"></label>
</p> 

<article>
  <header>
  <p><img src="/usericons/16235"> <b>Fred Flintstone</b></p>
  <p><a href="/posts/30934" rel=bookmark>12:44</a> — <a href="#acl-503439551">Private Post</a></p>
  </header>
  <main>
  <p>Check out my new video!</p>
  <iframe title="Video" src="https://youtube测试数据/?id=92469812" allowfullscreen></iframe>
  </main>
</article> 

<article>
  <header>
    <h2>Lesson: How to cook chicken</h2>
    <aside>
      <header>
        <h2>About the author: Tom Hank</h2>
        <p><a href="./tomhank/">Contact him!</a></p>
      </header>
      <p>Expert in nothing but Cooking. The cookbook sideshow.</p>
    </aside>
  </header>
  <p><ins>Pour the marinade into the zip-top bag with the chicken and seal it.
          Remove as much air as possible from the bag and seal it. </ins></p>
</article> 

<h2>Form validation</h2>
<p>Enter details</p>
<form>
  <label>
    Mandatory input <input type="password" name="password" required />
  </label>
  <button type="submit">Submit</button>
</form>
<script>
  document.querySelector('form').reportValidity()
</script> 

<h2 contextmenu="popup-menu">
  Right click to get the context menu demo.
</h2>
 
<menu type="context" id="popup-menu">
  <menuitem type="checkbox" checked="true">Checkbox 1 </menuitem>
  <menuitem type="command" label="Command" onclick="alert('WARNING')">Checkbox 2</menuitem> 
  <menuitem type="radio" name="group1">Radio button a</menuitem>
  <menuitem type="radio" name="group1" checked="true">Radio button b</menuitem>
  <menuitem type="checkbox" disabled>Disabled menu item</menuitem>
</menu> 

<script nonce='d3ne7uWP43Bhr0e'>
  The JavaScript Code 
</script> 

//Document with URL "chapter1.html"
 
<link href="Lesson2.html" rel="next" rev="prev">
 
 
//Document with URL "chapter2.html"
 
<link href="Lesson1.html" rel="prev" rev="next">
<link href="Lesson3.html" rel="next" rev="prev"> 

<section>
  <h3>Error Message</h3>
  <details>
  <summary>This file hasn't been download due to network error.</summary>
  <dl>
    <dt>File name:</dt><dd>Passcode.txt</dd>
    <dt>File size:</dt><dd>8 KB</dd>
    <dt>Error code:</dt><dd>342a</dd>
  </dl>
  </details>
</section> 

<section>
  <h2> 
    Week, Month and Datetime-local 
  </h2>
  <form action="action_page.php">
    Choose a week:
    <input type="week" name="year_week">
    <input type="submit">
  </form>
  <form action="action_page.php">
    Birthday (month and year):
    <input type="month" name="bdaymonth">
    <input type="submit">
  </form>
  <form action="action_page.php">
    Joining (date and time):
    <input type="datetime-local" name="bdaytime">
    <input type="submit" value="Send">
  </form>
</section> 

<img src="clicks/low-res.jpg" srcset="
  clicks/low-res.jpg 1x, 
  clicks/medium-res.jpg 2x, 
  clicks/high-res.jpg 3x"
> 

<img src="clicks/low-res.jpg" srcset="
  clicks/low-res.jpg 500w, 
  clicks/medium-res.jpg 1000w, 
  clicks/high-res.jpg 1600w"
> 

<img src="clicks/low-res.jpg" sizes="(max-width: 25em) 60vw, 100vw" 
  srcset="clicks/low-res.jpg 500w, 
  clicks/medium-res.jpg 1000w, 
  clicks/high-res.jpg 1600w"
> 

<picture>
  <source media="(max-width: 25em)" srcset="
    clicks/small/low-res.jpg 1x,
    clicks/small/medium-res.jpg 2x, 
    clicks/small/high-res.jpg 3x
  ">
  <source media="(max-width: 60em)" srcset="
    clicks/large/low-res.jpg 1x,
    clicks/large/medium-res.jpg 2x, 
    clicks/large/high-res.jpg 3x
  ">
 
  <img src="clicks/default/medium-res.jpg">
</picture> 

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