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CSS CSS Transitions and Transforms Getting Started with CSS Transitions Creating Your First Transition with transition-duration

Elias Paiva
Elias Paiva
7,348 Points

Why was the declaration "transition-duration: 1s;" added to ".button" and not ".button:hover"?

I thought that it was going to be added to the hover declariton, but I tested it and it works both ways. So why one over the other)

1 Answer

Hi Eias!

I think that's just the customary way to approach it.

Think of button as the starting point and button: hover as the endpoint

My way of looking at it is you include the transition/duration on the starting point.

Does that make sense?

BTW, I tested it too, and it does SEEM to work either way.

NOTE: But there is a subtle difference (which I didn't notice either at first):

When transition-duration is assigned to button, the duration works BOTH when you hover on and hover off.

When it is assigned to button:hover, however you get a smooth, slow transition when you hover on only.

When you hover off, it abruptly reverts back (without the smooth, slow transition).

(Test it again and you'll see it.)

So, I learned something new, too!?! LOL (Thank you for that!)

More info:

https://www.w3schools.com/css/css3_transitions.asp

https://css-tricks.com/almanac/properties/t/transition/

I hope that helps.

Stay safe and happy coding!