url --- {String} url used in fetch to pull in markdown
string --- {String} markdown to render
<c-lightndown
string="#markdown"
url="https://raw.githubuserco
5D76
ntent.com/jsmithdev/lightndown/master/README.md"
></c-lightndown>
Uses tweaked version of the wonderful project Marked
https://github.com/markedjs/marked
Resets some inherited css using some of chrome's user agent values
https://chromium.googlesource.com/chromium/blink/+/master/Source/core/css/html.css