Example
An <iframe> with a srcdoc attribute:
<iframe srcdoc="<p>Hello world!</p>" src="demo_iframe_srcdoc.htm"></iframe>
Try it Yourself »
Definition and Usage
The srcdoc attribute specifies the HTML content of the page to show in the inline frame.
Tip: This attribute is expected to be used together with the sandbox and seamless attributes.
If a browser supports the srcdoc attribute, it will override the content specified in the src attribute (if present).
If a browser does NOT support the srcdoc attribute, it will show the file specified in the src attribute instead (if present).
Browser Support
The numbers in the table specify the first browser version that fully supports the attribute.
| Attribute | |||||
|---|---|---|---|---|---|
| srcdoc | 20.0 | Not supported | 25.0 | 6.0 | 15.0 |
Differences Between HTML 4.01 and HTML5
The srcdoc attribute is new in HTML5.
Syntax
<iframe srcdoc="HTML_code">
Attribute Values
| Value | Description |
|---|---|
| HTML_code | The HTML content to show in the iframe. Must be valid HTML syntax |