How to make YouTube videos the full width on mobile?


I have a blog post template and use a RTE page to style everything. However, I can’t stylise my YouTube videos and customise how I want them to look on different screen sizes like a can with font size, padding etc.

On a mobile phone the video is too small and I would like it to be full width, however, I don’t want it to be full width on a desktop as it will look too big.

Any help is much appreciated. I have no design skills/training and only started a couple of weeks ago so the more basic the better!

Thanks so much.


Hi @Kate_McMahon and welcome, the best way to get help please follow forum guide rules that are pinned on top of each topic section and assign appropriate topic instead a general

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Hi @Kate_McMahon

You need to insert the youtube embed inside of a div, then style that div so it takes the CSS. Only do this on the mobile device size and not desktop.

Thanks so much for replying, I wasn’t notified there was a reply so sorry for not replying sooner.

I am using a dynamic articles template page that pulls the blog content styling from the same rich text field, so I am not sure if what you have described will work but I can try.

I think I perhaps need custom code, do you agree? Do you know how I would do this? Thanks so much.


Just wrap everything inside the Div, the put the iframe inside. All the other content will be inside the iframe.