The 'rem' unit in CSS - relative font sizes

A follow up to my previous video on the "em" relative CSS unit, this one is going to be about it's useful counterpart, the "rem" unit. This unit is used to specify font sizes relative the root (HTML) font size.

This is especially useful for development, making it easy to change the font size of your entire website with a single code change.

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[jimh]

So the difference between "'em" and "rem" is that "rem" is relative to the root (html), whereas "em" is relative to the parent?

[sparrowgaming]

how you added line between your heading and lists?

[bikramchettri]

Hey dcode can you show how to make accordions using vanilla js