this is H1

this is H2

this is H3

this is H4

this is H5

this is H6

this is regular paragraph

IFrame for responsive:

<div class="content-embed-section__embed-container">
<div class="content-embed-section__youtube"><iframe src="https://www.dinkytown.net/v3/992033b/retire-401k.html" width="" height="" frameborder="0" align="middle"></iframe></div>
</div>

Video Embed Code - use what YouTube gives you

To force closed caption add ?cc_load_policy=1 at the end of the URL.

example -