Q. What's the difference between these css codes?

Question

100vh
100%
100v
100%v
100%vh
100px
What's the difference between all these above css codes, how do they affect the output? Which one is a better option?

Answer 1

100px - it defines the pixelated size of something...

100% - it defines the size by relating to others like, the device size is 1000 px and you do want to give style related to that of device size 1000px to 100%..

100vh - it either defines the device viewport relative units...
100vh means to express 100%

Answer 2

100% is 100% width/height of its parent width/height.

And 100vh is not means 100% unless its parent is 100vh height.