Video with autoplay?

Hello everyone!
I'm creating a project using Twine 2 with Sugarcube 1.0.34, and there's a part where I want to play a local video (stored on the computer) with autoplay, so that when the passage loads the video will start playing automatically. Also, I DON'T want the video to have any kind of taskbar where you can pause, move forward, etc.
So, first I tried the most direct approach with this code:

<video src="videos/video1.mp4" width="640" height="480">
</video>

But it didn't have autoplay, naturally, so then I tried this:

<video controls autoplay>
<source src="videos/video1.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>

But this second version has a video taskbar with options like "play", etc.

So does anyone know how I could make the simpler version of the video (the first version, with no taskbar) start automatically when the passage loads, or how could I remove the options from the second video? I guess it must be pretty simple but I have no knowledge of HTML5 and I can't manage to figure it out... thanks a lot in advance!