How to add my own video to product page (Not youtube video)

I’ve tried and tried - and the video does not run.

It just shows a black default with controls - nothing happens. I’ve tried to implement it several ways.

What am I doing wrong?

https://www.authentic.dk/pages/testside

<video style="width: 100% !important; height: auto !important;" controls="controls">
<source src="https://info-at-authentic.wistia.com/medias/0ojz21b6em" type="video/mp4" /></video> 

<video playsinline="true" controls="controls">

    <source src="https://info-at-authentic.wistia.com/medias/0ojz21b6em" type="video/mp4" />
<p>Sorry html5 video is not supported in this browser</p>

</video> 

<video playsinline="true" controls="controls">
    <source src="https://videos.shopifycdn.com/c/vp/afe4b8a92ca944e49bc4b888927b7ec3/master.m3u8?Expires=1560458164&KeyName=core-signing-key-1&Signature=BIQQpuyEVnyt9HUw4o9QOmQ1z2c=" type="application/x-mpegURL" />

    <source src="https://videos.shopifycdn.com/c/vp/afe4b8a92ca944e49bc4b888927b7ec3/SD-360p.mp4?Expires=1560458164&KeyName=core-signing-key-1&Signature=1kEi8GmNIssxVvjyzy7AOuGP-E0=" type="video/mp4" />
    <source src="https://videos.shopifycdn.com/c/vp/afe4b8a92ca944e49bc4b888927b7ec3/SD-480p.mp4?Expires=1560458164&KeyName=core-signing-key-1&Signature=8Lt74XmFWP6hOF1WRdqNkDWRm2U=" type="video/mp4" />
    <source src="https://videos.shopifycdn.com/c/vp/afe4b8a92ca944e49bc4b888927b7ec3/HD-720p.mp4?Expires=1560458164&KeyName=core-signing-key-1&Signature=vlNXWpvgRT2bghrWovJPrN8w3mc=" type="video/mp4" />
<p>Sorry html5 video is not supported in this browser</p>
</video>