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CSS CSS Layout Techniques Flexbox Layout Flexbox Layout Challenge

Difference between flex:1 and flex-grow:1

I've noticed flex:1 will make sure all the flex-items are the same width, however, flex-grow: 1 seems to be doing something else?

2 Answers

Codin - Codesmite
Codin - Codesmite
8,600 Points

"flex" is the shorthand for flex-grow, flex-shrink and flex-basis.

For example instead of using:

.example{
  flex-grow: 1;
  flex-basis: 100px;
}

You can use the shorthand instead:

.example{
  flex: 1 100px;
}

Thanks Ashley!

I still don't quite understand why flex: 1, does something different to flex-grow: 1!

Cheers,

Seb

Codin - Codesmite
Codin - Codesmite
8,600 Points

I have realised what causes the difference your are seeing:

If you use:

flex: 1;

It automaticaly defines flex-basis: 0, without having to define it as "flex: 1 0;"

but if you use:

flex-grow: 1;

On its own it will look different to "flex: 1;" because the basis isn't set.

If you use:

flex-grow: 1;
flex-basis: 0;

You will find that they are identical.

Codepen example: http://codepen.io/anon/pen/EarMpX

Cheers! Nice thorough explanation.