Update normalize.css

[vanthome]

The same rule selector b, strong is used twice which causes problems in some scenarios and does not match the convention in the rest of the code. I have merged both rules under one selector.

[jonathantneal]

Hey @vanthome, thanks for looking through the code of this project. Did you see the comment next to the line in question?

Prevent the duplicate application of bolder by the next rule in Safari 6.

This duplication is purposeful.

You did not specify problems in some scenarios, so could you be more specific about this issue?

You also said this does not match the convention in the rest of the code. There are other parts of the code that do similar things, and I assure you we get many issues and PRs for the duplicate monospace, monospace. 😄

Again, it’s awesome that you are looking into the code, and that you would take the time to make a clean PR that only affects the parts of the code you want to change.

My two cents; do not merge.

[vanthome]

@jonathantneal ok, now I understand the comment and code. I withdraw the PR.