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CSS How to Make a Website Styling Web Pages and Navigation Build Navigation with Unordered Lists

How do I calculate the values for margin and padding?

I am currently learning how to build a basic website.

Watching this video I had to stop and ask.

How does he know what values to put for margin and padding below header? Is there a logical, quick way to calculating this?

Many thanks!

1 Answer

No, he tested before he recorded the movie clip. In one of his videos he specifies that.