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Att Object Height

📅 2026-06-14 | 📂 HTML
# HTML height Attribute The `` tag's `height` attribute is used to define the vertical dimension of an embedded object. This tutorial provides a comprehensive guide on how to use the `height` attribute, its syntax, browser compatibility, and modern best practices. --- ## Definition and Usage The `height` attribute specifies the height of an embedded object in pixels. The `` element is used to embed multimedia, external resources, or interactive content (such as PDFs, Flash animations, images, or audio/video players) directly into an HTML document. --- ## Syntax ```html ``` ### Attribute Values | Value | Description | | :--- | :--- | | *pixels* | Specifies the height of the object in pixels (e.g., `height="400"`). | --- ## Code Examples ### Example 1: Embedding a PDF Document This example demonstrates how to embed a PDF document with a height and width of 500 pixels. ```html Embedded PDF Example

Embedded PDF Document

Alternative text: Your browser does not support PDFs. Download the PDF instead.

``` ### Example 2: Embedding Flash Animation (Legacy) Historically, the `` tag was widely used to embed Flash animations (`.swf`). ```html

Flash is no longer supported in modern browsers.

 ``` --- ## Browser Support The `height` attribute of the `` tag is fully supported by all major modern web browsers: * Google Chrome * Mozilla Firefox * Microsoft Edge / Internet Explorer * Safari * Opera --- ## HTML 4.01 vs. HTML5 * **HTML 4.01:** The `height` attribute could be defined in either pixels or as a percentage (e.g., `height="50%"`). * **HTML5:** The `height` attribute must be specified **only in pixels**. Percentage values are no longer valid for the HTML attribute. If you need responsive or percentage-based heights, you should use CSS instead. --- ## Best Practices and CSS Alternatives While you can set the height directly using the HTML attribute, modern web development prefers using CSS for layout and styling to maintain a clean separation of concerns. ### Using CSS to Set Height You can achieve the same result (and gain more flexibility, such as using `vh`, `%`, or `rem` units) by using the CSS `height` property: ```html ```
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