Stop video from playing on page load?

I have embedded a video (using the video lecture template in Daylight) but I would like to have the students click to play it using the controls. Right now it plays on page load, which will be a nuisance if they are revisiting the page .
I'm sure it must be a simple tweak, but my eyes are getting blurry from the code.
Thanks in advance.
Code for reference:
<div class="row">
<div class="col-xs-12 col-sm-offset-1 col-sm-10">
<div class="video-wrapper">
<div class="embed-responsive embed-responsive-16by9"><iframe controls="controls" class="embed-responsive-item" src="/content/enforced/636147-ECS_1010_01.02_F20/Media/ECS1010%20-%20Intro%20Movie.mp4" allowfullscreen="true"></iframe></div>
<div class="video-text">
<p>Welcome Video</p>
</div>
</div>
</div>
</div>
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