I'd love to hear an answer too. using pre-scripted embed code works, but the width of the video in the website is 2.5- 3 times wider than it should be.
<iframe src="https://iframe.dacast.com/live/9a6a8dd7-ae13-4ee4-7c41-2c8db5203701/3b5fa3c6-6cd5-141d-12ba-5612b4743552" width="100%" height="100%" frameborder="0" scrolling="no" allow="autoplay" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe>