The <param> tag passes parameters to embedded objects inside an <object> element. It's a void element (self-closing) that uses name and value attributes. Note: This tag is obsolete in HTML5 and was primarily used with Java applets and plugins.

<param

Step 2

The <param> tag must be inside an <object> element, before any fallback content. It requires both name and value attributes. The name attribute specifies the parameter name, and value specifies the parameter value. Multiple param elements can be used to pass multiple parameters.

<object data="applet.jar">
  <param name="code" value="MyApplet.class">
  <param name="width" value="300">
  <param name="height" value="200">
</object>

Step 3

Historical use cases: Java applets, Flash plugins, ActiveX controls. Modern alternatives: Use JavaScript APIs, Web Components, or iframe for embedding content. The param tag is deprecated because these technologies are no longer supported in modern browsers.

<object data="plugin.swf">
  <param name="movie" value="plugin.swf">
  <param name="quality" value="high">
</object>

Step 4

In modern browsers, param elements are ignored because the technologies they supported (Java applets, Flash) are no longer available. If you need to embed content, use modern alternatives like iframe, embed, or JavaScript-based solutions.

<object data="applet.jar">
  <param name="code" value="MyApplet.class">
</object>

Step 5

Checkpoint: Which element passes parameters to embedded objects?

<object>
  <param name="key" value="value">
</object>

Step 6

Correct! The <param> tag passes parameters to embedded objects inside an <object> element. However, note that this tag is obsolete in HTML5 and modern browsers no longer support the technologies it was designed for.

<object>
  <param name="key" value="value">
</object>

Step 7

Now it's your turn. While param is obsolete, understanding legacy HTML helps when maintaining old code. Complete the challenges below to master the <param> tag!

param.html

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Tutor:The <param> tag passes parameters to embedded objects inside an <object> element. It's a void element (self-closing) that uses name and value attributes. Note: This tag is obsolete in HTML5 and was primarily used with Java applets and plugins.

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Concept 1: The Param Tag

The <param> tag passes parameters to embedded objects inside an <object> element. It's a void element (self-closing) that uses name and value attributes. Note: This tag is obsolete in HTML5 and was primarily used with Java applets and plugins.

System Check

Which element passes parameters to embedded objects?

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HTML <param> Tag (Obsolete)

Pascual Vila

Frontend Instructor.

⚠️ Obsolete Element

The <param> tag is obsolete in HTML5. It was used with Java applets and Flash plugins, which are no longer supported in modern browsers. Use modern alternatives like JavaScript APIs, Web Components, or iframe for embedding content.

The HTML param tag passes parameters to embedded objects inside an <object> element. It is a void element (self-closing) that uses name and value attributes. Note: This tag is completely obsolete in modern HTML5.

Structure and Attributes of the Param Tag

The <param> tag must reside directly inside an <object> element, declared before any fallback content. It strictly requires both name and value attributes to function in legacy systems:

name: Specifies the name of the parameter.
value: Specifies the value of the parameter being configured.

Why is the Param Tag Obsolete?

Historical use cases included initializing Java applets, Flash plugins, and ActiveX controls. The param tag is deprecated today simply because these plugin-based technologies represent security risks and are no longer supported natively by modern web browsers like Chrome, Firefox, Safari, or Edge.

Modern Alternatives to Param

Instead of using <param>, developers should use:

JavaScript APIs: For dynamic and interactive content.
Web Components: For building encapsulated, reusable UI elements.
Iframe: For securely embedding external content.
Native Media Elements: Such as <video> and <audio> tags for media playback.

Param Tag Glossary

<param> (Obsolete): HTML element (obsolete in HTML5) that passes parameters to embedded objects inside an <object> element. Must be inside <object>. Requires name and value attributes. Was used with Java applets and Flash plugins.
name Attribute: Required attribute on <param> that specifies the parameter name. Used together with the value attribute to pass configuration to embedded objects.
value Attribute: Required attribute on <param> that specifies the parameter value. Used together with the name attribute to pass configuration to embedded objects.
<object>: HTML element that embeds external objects into HTML. The param element must be inside an object element. Many traditional uses of object (with param) are now obsolete.
Obsolete Status: The param tag is obsolete in HTML5 because it was used with Java applets and Flash plugins, which are no longer supported in modern browsers. Modern alternatives include JavaScript APIs, Web Components, and iframe.

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