CSS video background doesn't play on android's chrome - css

A simple one - here is my site - http://michaelmedvedskiy.website
I'm loading it through the same wifi network, in my pc browser the background video loads fine - pc fullscreen perspective
And if i stretch the screen down to the mobile's perspective it works fine as well - pc stretched perspective
But on my mobile device (Sony Experia X5) it just doesn't load - mobile perspective
Why so?
Hopefully, I wrote the question properly, if I didn't, please remark my flaws, I will correct them.

Background videos are not auto playing on mobile devices. It's default setting. You may try to play manually using player API

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Broken mobile responsiveness in iOS only

I'm experiencing a weird issue with the mobile responsive layout of a website.
The address is https://melec.vercel.app/
On desktop using dev tools > responsive, it works correctly, also on any android device you get the correct mobile experience but in iOS devices (tested on 2 iphones) the website renders incorrectly, it seems to have the double of the actual available screen width.
For reference I'm using tailwindcss, tailwindui and nextjs.
In this image you can see the scroll bar for horizontal movement.
Here you can see how I can freely move horizontally, this doesn't happen on dev tools or android devices.
Also when I press the mobile burger the whole layout shrinks a bit.
it is because the top part "flex-shrink-0 flex items-center".
I entered a "max-width: 100%;".

Iframe youtube autoplay is not working in mobile?

When I run it in desktop its okay , but when I do inspect element and change to mobile view it doesn't work the autoplay.
iframe src="https://www.youtube.com/embed/vsSQEUSQkIs?autoplay=1" allow='autoplay'>
That is the iframe Im using putting ?autoplay=1 makes it work autoplay to desktop, but not working on mobile.
What about your experience with actual Phones?
In my experience autoplay doesn't work with iOS Safari, however Chrome on an Android phone does seem to work.
I think Safari has some inbuilt prevention for videos autoplaying.
Mobile browsers have been making it harder for videos to autoplay on mobile, to prevent involuntary data use. It's most of two years since the question was asked but it was true even then.
The YouTube Iframe API documentation says:
The HTML5 element, in certain mobile browsers (such as Chrome and Safari), only allows playback to take place if it's initiated by a user interaction (such as tapping on the player). Here's an excerpt from Apple's documentation
"Warning: To prevent unsolicited downloads over cellular networks at the user’s expense, embedded media cannot be played automatically in Safari on iOS — the user always initiates playback."

Embedded video on fullscreen is not on top of the site

Okay, this is a strange one. When the embedded video is clicked (on Chrome) to be seen on fullscreen, it's moved on the right because of the sidebar. On Firefox, it's as it should -the video is correctly stretched over the whole site. However, there is something that doesn't allow Chrome to do that.
Okay, I managed to find that this is connected with the animation-fill-mode. And I'm afraid that this is duplicate of HTML5 video won't maximize beyond container dimensions in native full screen mode

Images not scalling down on actual mobile device

I am having a problem where my images don't scale down when they are on mobile.
I'm using images as a background layer on the site each with parallax effects.
If I look at the site using the chrome dev tools on an iphone 6 it scales them down but on the actual mobile device it does not.
I tried using media queries targeting an iphone 6 directly and also tried again with one that switches out the image to a smaller version.
Any ideas on what to do?

CSS - Facebook plugin overflows when displayed on mobile devices

I'm just starting out in web design/CSS so my current knowledge is limited.
With that in mind (this may be very easy for pros to fix), does anyone know why the Facebook iframe on this website won't stay within the sidebar on mobile devices?
http://www.northeastimage.co.uk
It looks great on desktop browsers but on the iPhone for example sits out of the sidebar over the margin sticking to the far right of the screen.
i would go for a user-agent to look trough your css and html, its a cross browser look also support phones and tablets it lets you "tell" the browser that your a phone tough your on your desktop
easy to debug while using it, i pref user agent for chrome get it here
Get strings to view from more viewports than the standard amount that are embedded in the program

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