Knowing a bit of HTML can make a big difference when configuring your LMS, site or other things.
The magnificent educational platform called MOODLE lets us insert a great bunch of things inside the courses. It goes the same with Google Sites, despite they are more strict with some tags.
But when we want to improve things a bit more we need to know how to hack it, i.e, how to embed generic things from any other website. Have a look at the video below in order to learn the secrets of embedding.
Note: the iframe tag showed in the video is the following one. Paste your URL in the SRC label, and change the width and height to fit it.
<iframe
src="YOUR_URL_GOES_HERE&embedded=true"
style="width:400px; height:500px;"
frameborder="0">
</iframe>