What are the new tags in html5? New tag applications in html5
html5 is the fifth revision of Hypertext Markup Language (HTML), so some new tags have been added to html5. So, what are the new tags in html5? What I will introduce to you below is the new tags added in html5 compared to html.
1. New tags in HTML5
Header - can represent a container for introduction content, or a set of navigation links.
Nav - The content of the label is mainly used for navigation.
Article - identifies the main content in the page. Taking a blog as an example, each post is an important piece of content, and Article can be used to identify each post.
Section - Used to mark important sections on the page. This markup is similar to dividing a document into chapters.
Aside - Indicates that it is related to the main content of the page, but is not part of the page. It often indicates a related link.
Footer - Opposite to Header, it represents the footer of the document or chapter. For example, copyright information is placed in this tag.
Traditional div layout
<body>
<!-- 页头 -->
<div class='header'></header>
<!-- 导航 -->
<div class='nav'></div>
<!-- 主体内容 -->
<div class='main'>
<!-- 文章 -->
<div class='article'>
<!-- 节 -->
<div class='section'></div>
</div>
<!-- 边栏 -->
<div class='sidebar'></div>
</div>
<!-- 页脚 -->
<div class='footer'></div></body>Use the new tags in HTML5 to implement layout
<body>
<header></header>
<nav></nav>
<div>
<article>
<section></section>
</article>
<aside></aside>
</div>
<footer></footer></body>2. Enhanced application of forms
In HTML 4, some simple form elements are provided to handle basic input. For certain types of input, such as date and time input, the interactive experience cannot meet the needs. Therefore, in order to get better results, you can only use javascript to write component implementations. Improved in HTML 5, adding new form elements to provide more input types.
(1) Input's Type attribute expansion
search - presents a search box.
tel - Enter the phone number, you can use pattern and maxlength to limit the input to the appropriate
<input type='tel' name='tel' value="" placeholder="请输入手机号码" pattern='1[3-8][0-9]{9}' title='请输入11位手机号'>url - Enter the URL address.
email - Enter your email address.
date - Enter the date.
color - Enter color.
number - Enter a number.
range - Slider input
(2) Input form validation through attributes
required - Mark the current element as required.
pattern - Use regular expressions to validate form input.
(3) Other useful attributes of the Input element
autofocus - When the page loads, automatically focus on the current input element.
form - Associates an input element with a specific Form form.
placeholder - Input placeholder that prompts the user for input.
(4) HTML 5 new elements and special attributes contenteditable
progress - element represents a progress bar.
<progress value='30' max='100'></progress>
meter - Element representing a ruler. The maximum value max defaults to 1.
<meter value="3" min="0" max="10">3/10</meter><meter value="0.6">60%</meter>
HTML 5 special attribute contenteditable, through which an ordinary element can be made editable.
<p contenteditable="true">这里的内容式可编辑的</p>
3. Using audio and video
(1) audio (audio tag)
<audio controls>
<source src="vincent.mp3" />
<source src="vincent.ogg" />
您的浏览器不支持 audio 标签</audio>audio The attributes that control the behavior of elements are as follows
controls - This attribute controls whether to display the standard audio space.
autoplay - Whether to play automatically. Default false.
loop - Whether to loop. Default false.
preload - Preloading method. There are three situations: none means no preloading; metadata only loads the metadata of the audio; auto means preloading the entire audio. Default auto.
volum - volume, value between 0 - 1
Methods to play and pause audio
var audio = document.getElementById('audio') audio.play() // 播放audio.pause() // 暂停
(2 ) video (video tag)
currentTime controls the time to start playing
<video width="400" height="300" controls currentTime='5'>
<source src="dizzy.mp4#t=5" type="video/mp4" /> <!-- 从 5s 开始 -->
<source src="dizzy.ogv#t=5,10" type="video/ogg" /> <!-- 从 5s 到 10s -->
<source src="dizzy.webm#t=,15" type="video/webm"> <!-- 到 15s 结束 -->
<p>您的浏览器不支持 HTML 5 视频</p></video>Recommended related articles:
html5 basic tag (html5 video tag html5 new Tag usage)_html5 tutorial skills
##Summary of new elements and tags in HTML5
Introduction to new tags and attributes in HTML5
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