I think about the best you could do given the restrictions of iframes is the following.
<iframe data-preserve-html-node="true" id="embedIframe" title="Recess Embed Iframe" width="100%" src="https://theartofmovement.on.recess.tv/embed/checkout/explore?hideMenu=true&class_type=VOD" allowfullscreen="" webkitallowfullscreen="" mozallowfullscreen="" style="height: 100vh;"></iframe>
Let us know how it goes.