Is my CSS reset correct?

Question

Note that I'm only interested in micro changes, not all CSS fees. I want to understand this specific element.

Relatively lower:

Everything looks good, and I recognize CSS when I create it. The only thing that doesn't make sense is the style rule in Basic Style Rules . I am not familiar with 4 webkit-margin rules.

Should they be reset to 0 like?

What are they needed for?

I have not installed them, and they are not in the same CSS file that I use.

ut_but_new (button only)

CSS

Answer 1

These are the default fields for -webkit styles.

You can override them using the field: 0;

Answer 2

These rules are that the browser reverts to default if CSS is not defined.

In this case, the browser is based on webkit, so they have the -webkit prefix.

If everything looks fine, there is no reason to cancel them.