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在iOS和iPadOS上安装此APP
  1. 在Safari中轻敲分享图标
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  3. 轻敲右上角的添加按钮。
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  1. 轻敲浏览器右上角的三个点菜单 (⋮) 。
  2. 轻敲添加到主屏幕安装APP
  3. 轻敲安装进行确认。
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HTML Video


The HTML <video> element is used to show a video on a web page.


Video

Example

Courtesy of Big Buck Bunny:


The HTML <video> Element

To show a video in HTML, use the <video> element:

Example

<video width="320" height="240" controls>
  <source src="movie.mp4" type="video/mp4">
  <source src="movie.ogg" type="video/ogg">
Your browser does not support the video tag.
</video>

How it Works

The controls attribute adds video controls, like play, pause, and volume.

It is a good idea to always include width and height attributes. If height and width are not set, the page might flicker while the video loads.

The <source> element allows you to specify alternative video files which the browser may choose from. The browser will use the first recognized format.

The text between the <video> and </video> tags will only be displayed in browsers that do not support the <video> element.


HTML <video> Autoplay

To start a video automatically, use the autoplay attribute:

Example

<video width="320" height="240" autoplay>
  <source src="movie.mp4" type="video/mp4">
  <source src="movie.ogg" type="video/ogg">
Your browser does not support the video tag.
</video>

Note: Chromium browsers do not allow autoplay in most cases. However, muted autoplay is always allowed.

Add muted after autoplay to let your video start playing automatically (but muted):

Example

<video width="320" height="240" autoplay muted>
  <source src="movie.mp4" type="video/mp4">
  <source src="movie.ogg" type="video/ogg">
Your browser does not support the video tag.
</video>

Browser Support

The numbers in the table specify the first browser version that fully supports the <video> element.

Element
<video> 4.0 9.0 3.5 4.0 10.5


HTML Video Formats

There are three supported video formats: MP4, WebM, and Ogg. The browser support for the different formats is:

Browser MP4 WebM Ogg
Edge YES YES YES
Chrome YES YES YES
Firefox YES YES YES
Safari YES YES NO
Opera YES YES YES

HTML Video - Media Types

File Format Media Type
MP4 video/mp4
WebM video/webm
Ogg video/ogg

HTML Video - Methods, Properties, and Events

The HTML DOM defines methods, properties, and events for the <video> element.

This allows you to load, play, and pause videos, as well as setting duration and volume.

There are also DOM events that can notify you when a video begins to play, is paused, etc.

Example: Using JavaScript




Video courtesy of Big Buck Bunny.

For a full DOM reference, go to our HTML Audio/Video DOM Reference.


HTML Video Tags

Tag Description
<video> Defines a video or movie
<source> Defines multiple media resources for media elements, such as <video> and <audio>
<track> Defines text tracks in media players

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配置浏览器推送通知

Chrome (安卓)
  1. 轻敲地址栏旁的锁形图标。
  2. 轻敲权限 → 通知。
  3. 调整你的偏好。
Chrome (台式电脑)
  1. 点击地址栏中的挂锁图标。
  2. 选择网站设置。
  3. 找到通知选项并调整你的偏好。