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An HTML <iframe> (inline frame) is an HTML element that allows you to embed another document within the current HTML document. It is often used to embed content from other sources, such as a webpage, video, or interactive content, into a web page. The <iframe> element creates a rectangular region in the document, and the content from the specified source is displayed within that region.
Here's a basic example of how you might use the <iframe> element:
html
<!DOCTYPE html> <html> <head> <title>Embedded Content</title> </head> <body> <h2>Embedding a Webpage using iframe</h2> <iframe src="https://www.example.com" width="600" height="400"></iframe> </body> </html>
In this example, the content from the https://www.example.com webpage will be displayed within the iframe, and the iframe itself will have a width of 600 pixels and a height of 400 pixels.
The <iframe> element can be customized using various attributes, such as src (specifying the source URL), width and height (setting the dimensions), frameborder (controlling whether or not to display a border around the iframe), and more.
It's worth noting that the use of <iframe> should be done with caution, especially when embedding content from external sources, to ensure security and avoid potential security risks like clickjacking.
HTML Iframe Syntax
The HTML <iframe> tag specifies an inline frame.
An inline frame is used to embed another document within the current HTML document.
Syntax
<iframe src="url" title="description"></iframe>
Tip: It is a good practice to always include a title attribute for the <iframe>. This is used by screen readers to read out what the content of the iframe is.
Iframe - Set Height and Width
Use the height and width attributes to specify the size of the iframe.
The height and width are specified in pixels by default:
Example
<iframe src="demo_iframe.htm" height="200" width="300" title="Iframe Example"></iframe>
Or you can add the style attribute and use the CSS height and width properties:
Example
<iframe src="demo_iframe.htm" style="height:200px;width:300px;" title="Iframe Example"></iframe>
Iframe - Remove the Border
By default, an iframe has a border around it.
To remove the border, add the style attribute and use the CSS border property:
Example
<iframe src="demo_iframe.htm" style="border:none;" title="Iframe Example"></iframe>
With CSS, you can also change the size, style and color of the iframe's border:
Example
<iframe src="demo_iframe.htm" style="border:2px solid red;" title="Iframe Example"></iframe>
Iframe - Target for a Link
An iframe can be used as the target frame for a link.
The target attribute of the link must refer to the name attribute of the iframe:
Example
<iframe src="demo_iframe.htm" name="iframe_a" title="Iframe Example"></iframe>
<p><a href="https://www.w3schools.com" target="iframe_a">W3Schools.com</a></p>
Chapter Summary
- The HTML <iframe> tag specifies an inline frame
- The src attribute defines the URL of the page to embed
- Always include a title attribute (for screen readers)
- The height and width attributes specify the size of the iframe
- Use border:none; to remove the border around the iframe
HTML Exercises
Test Yourself With Exercises
Exercise:
Create an iframe with a URL address that goes to https://www.w3schools.com.
<iframe ="https://www.w3schools.com"></iframe>
