Want to change embed youtube video width and height on my product page

[Muhammad_Faraz]

I Want to change embed youtube video width and height on my product page but it is only changing on my shopify product page section, but didnt show these changes on my website product page.
How can i change the size of embed video on the product page.
I am currently using prestige version 5.

This is the width and height that i am trying with the embed code:

<iframe width="300" height="560" src="https://www.youtube.com/embed/5C1cIy1YLlY?si=t9ineCSGz0jPsPlm" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>

Pictures attached:

[Dan-From-Ryviu]

Could you share your product page link so I can check?

[Muhammad_Faraz]

https://thehairshop.pk/products/hair-keratin-treatment-ultra-strength

[Dan-From-Ryviu]

CSS of your theme removes width height settings in your code 

Also, if it applies your settings, your video will look like this 

[Muhammad_Faraz]

Yes i want video like this, so what should i have to do?

[Dan-From-Ryviu]

Please add this code to Custom CSS in Online Store > Themes > Customize > Theme settings 

.ProductMeta__Description .VideoWrapper { 
    overflow: unset; 
    height: 560px
}
.ProductMeta__Description .VideoWrapper iframe {
    width: 300px;
    height: 560px;
}

[Muhammad_Faraz]

Alright let me do that.. and autoplay is also not working when i am adding autoplay code in html...can you also tell that how to do this.. so that i will apply combine code in custom CSS for both of my problem 

[Muhammad_Faraz]

I have applied your code and it works but the video is on left side.. and doesnt come in center like other images...even after aligning it in center in product description.. tell me what can i do.

[Muhammad_Faraz]

Kindly replyyyyyy plzzzz
Here is the product page link:

https://thehairshop.pk/products/hair-keratin-treatment-ultra-strength-1

[Dan-From-Ryviu · Accepted solution]

Hi, please try to update the previous code to this 

.ProductMeta__Description .VideoWrapper { 
    overflow: unset; 
    height: 560px
}
.ProductMeta__Description .VideoWrapper iframe {
    width: 300px;
    height: 560px;
    left: 50%;
    transform: translate(-50%, 0px);
}

[Muhammad_Faraz]

Thankyouu..........autoplay is also not working when i am adding autoplay code in html...can you also tell that how to do this.. so that i will apply combine code in custom CSS for both of my problem .....can you also help with this?