I know the Discourse search can be a little awkward to use, so I suggest you use the bookmark facility to keep note of useful posts, so you can easily refer back to them.
For example, this thread from yesterday: Does and should [display values] be put on every style tag? - #5 by PaulOB and this post from last week: Does and should [display values] be put on every style tag? - #5 by PaulOB contain all the information required for you to answer that question yourself.