Title: HTML not valid
Last modified: January 18, 2021
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# HTML not valid
* Resolved [squadhouse](https://wordpress.org/support/users/squadhouse/)
* (@squadhouse)
* [5 years, 4 months ago](https://wordpress.org/support/topic/html-not-valid/)
* If you run the official [http://validator.w3.org/nu/](http://validator.w3.org/nu/)
validator there are some errors by the plugin:
- Error: Bad value true for attribute allowfullscreen on element iframe.
- Error: The frameborder attribute on the iframe element is obsolete. Use CSS
instead.
- Error: Element style not allowed as child of element body in this context.
- Can you fix this please since it collides with german law for accessibility
by people with health problems.
Viewing 5 replies - 1 through 5 (of 5 total)
* Plugin Author [Aert](https://wordpress.org/support/users/aahulsebos/)
* (@aahulsebos)
* [5 years, 4 months ago](https://wordpress.org/support/topic/html-not-valid/#post-13924040)
* HI [@squadhouse](https://wordpress.org/support/users/squadhouse/),
* Could you post the URL you check, so we have some context?
* Thanks, regards Aert
* Thread Starter [squadhouse](https://wordpress.org/support/users/squadhouse/)
* (@squadhouse)
* [5 years, 4 months ago](https://wordpress.org/support/topic/html-not-valid/#post-13925883)
* Yes of course: [https://www.tuticket.de](https://www.tuticket.de)
* Plugin Contributor [Leon Wimmenhoeve](https://wordpress.org/support/users/leonwimmenhoeve/)
* (@leonwimmenhoeve)
* [5 years, 4 months ago](https://wordpress.org/support/topic/html-not-valid/#post-13926110)
* Hi [@squadhouse](https://wordpress.org/support/users/squadhouse/),
* While the errors mention the Complianz placeholder, I suspect that another plugin
or theme is causing them:
– allowfullscreen is not added to the iFrame by Complianz,
perhaps by another plugin – frameborder the same – style elements are via the“
head”. So the style attribute can not be added by Complianz as well.
* You could test if temporarily disabling other plugins changes your test results.
Let us know if you want us to have another look at the page.
* Kind regards,
Leon
* Thread Starter [squadhouse](https://wordpress.org/support/users/squadhouse/)
* (@squadhouse)
* [5 years, 4 months ago](https://wordpress.org/support/topic/html-not-valid/#post-13934106)
* Hi Leon,
* thank you for your quick reply. I have literally deactivated EVERY plugin except
for complianz itself and it still added those tags and styles.
* I even switched the theme to twenty-two default theme (without any modifications)
and the problem still occured.
* I don´t really have any more ideas…
* Plugin Author [Aert](https://wordpress.org/support/users/aahulsebos/)
* (@aahulsebos)
* [5 years, 4 months ago](https://wordpress.org/support/topic/html-not-valid/#post-13935247)
* Hi [@squadhouse](https://wordpress.org/support/users/squadhouse/),
* The iFrame attributes are from the YouTube video, where Complianz adds a placeholder
but does not add the attributes.
* You can remove the attributes from the iFrame if it’s an issue,
* regards Aert
Viewing 5 replies - 1 through 5 (of 5 total)
The topic ‘HTML not valid’ is closed to new replies.
* 
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* 5 replies
* 3 participants
* Last reply from: [Aert](https://wordpress.org/support/users/aahulsebos/)
* Last activity: [5 years, 4 months ago](https://wordpress.org/support/topic/html-not-valid/#post-13935247)
* Status: resolved