HTML - data Attribute

HTML data attribute is used along with object tag to embed external resources, such as images, videos, documents, or other web pages using URL.

If you have an image, audio, or video file in your system, you can access it and display it on a webpage by specifying its resource address as the value of the data attribute.

It is important to note that the data attribute will only work with the <object> tag, and at least one data and type attribute must be defined within the <object> tag.

Syntax

<object data = "value"></object>

Applies On

Below listed elements allow using of the HTML data attribute

Element	Description
<object>	HTML <object> is used to show multimedia on web pages, including audio, video, pictures, webisite, PDFs, and Flash.

Examples of HTML data attribute

Bellow examples will illustrate the HTML data attribute, where and how we should use this attribute!

Data attribute with audio Object

In the following program, we are using the HTML 'data' attribute within the <object> tag to specify the URL of a resource (i.e., audio file).

<!DOCTYPE html>
<html lang="en">
<head>
   <title>HTML 'data' attribute</title>
   <style>
      object {
         width: 300px;
         height: 150px;
         display: grid;
         place-items: center;
         background-color: aqua;
      }
   </style>
</head>
<body>
   <!--HTML 'data' attribute-->
   <p>Example of the HTML 'data' attribute</p>
   <object 
   data="https://samplelib.com/lib/preview/mp3/sample-6s.mp3" 
   type="audio/mp3">
   </object>
</body>
</html>

Data attribute with Video Object

Considering the another scenario, where we are going to use the data attribute with the object tag to specify the URL of the video.

<!DOCTYPE html>
<html lang="en">
<head>
   <title>HTML 'data' attribute</title>
   <style>
      object {
         width: 300px;
         height: 150px;
         display: grid;
         place-items: center;
         background-color: aqua;
      }
   </style>
</head>
<body>
   <!--HTML 'data' attribute-->
   <p>Example of the HTML 'data' attribute</p>
   <object data=
"https://static.videezy.com/system/resources/previews/000/019/695/original/pointing-pink.mp4" 
      type="video/mp4"></object>
</body>
</html>

Data attribute with Image Object

Let's look at the following example, where we are going to use the data attribute with the object tag to specify image URL.

<!DOCTYPE html>
<html lang="en">
<head>
   <title>HTML 'data' attribute</title>
   <style>
      object {
         width: 300px;
         height: 150px;
         display: grid;
         place-items: center;
         background-color: aqua;
         border: 4px solid black;
      }
   </style>
</head>
<body>
   <!--HTML 'data' attribute-->
   <p>Example of the HTML 'data' attribute</p>
   <h3>Resource image: </h3>
   <object data=
"https://www.tutorialspoint.com/static/images/simply-easy-learning.png">
</object>
</body>
</html>

Supported Browsers

Attribute
Data	Yes	Yes	Yes	Yes	Yes

html_attributes_reference.htm