is em value in vertical spaces necessary ? [for discussion]

[MoniqueHahnefeld]

if it's necessary I'd like to use it also for the horizontal spaces and use the unit rem. What do you mean @samuelll, @may17

[may17]

I am not a big fan of rem. To many drawbacks.

[MoniqueHahnefeld]

what drawbacks you mean? so what's the advantages of the em-units in the theme now. make that em-declarations any sence?

[Aybee]

EM or REM in vertical spaces makes sense. e.g. p{margin-bottom:1em}. This makes sure that the distance between paragraphs relates to the actual font-size of a paragraph.

[MoniqueHahnefeld]

@Aybee Thx, I supposed something like that. Want to be sure about that :)
What do you think about the global font-size unit, we should use? I prefer rem and not px.

[Aybee]

I always use REM http://caniuse.com/#feat=rem for font-size.

[sascha-mueller]

me to. REM and, if necessary, px Fallback via mixin.

Am 15.07.2015 um 23:10 schrieb Andreas Burg:

I always use REM http://caniuse.com/#feat=rem

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#58 (comment).

[may17]

@MoniqueHahnefeld
https://code.google.com/p/chromium/issues/detail?id=320754
https://vasilis.nl/nerd/dislike-rem-unit/
https://mindtheshift.wordpress.com/2015/04/02/r-i-p-rem-viva-css-reference-pixel/

[Aybee]

Short statement:

I don't care about IE8. I think you neither do.

I don't use PX as I don't want to disregard the users browsers font size settings respectively the output devices default font size setting. And I like to be able to easily adjust the overall font sizes by just changing one value. Normaly my HTML gets no setting so BODY gets the users (devices) font size if I set it to 1rem.

I prefer REM over EM as I don't want this font-size inheritance (if I want this inheritance I use EM).

And yes, devices already support zooming of PX values so this is not a reason for using REM/EM long since.

[may17]

Its my wish to create a COD 2 with a new modern look. The contents of the cod are good (just the frontpage needs an update for my opinion) but the design isnt up to date.

Perhaps it makes more sense to use rem in newer version? What do you think?

[sascha-mueller]

Ich mag REM und arbeitegern damit.
Generell bin ich also dafür.

[may17]

@samuelll feel free to refactor it :)

[sascha-mueller]

@may17 Wie stehst Du denn zu REM für die fontsitze in diesem Projekt?

[Aybee]

@may17 ...but the design isnt up to date...

I totaly agree. Maybe it's just down to the colors. (Which I never liked).

Use PX when it makes sense. Use EM where it makes sense (e.g. margin-bottom of paragraphs, or if you think the inheritance is exactly what is needed in a special situation). Use REM when you want to respect the devices font-size settings and don't want to juggle around with unwanted inheritance.

With the padding in the content boxes for example I sometimes use PX and sometimes REM. To me it's always hard to decide what to use. But maybe this is not very important.

BTW I never understood the viewport breakpoints in EM. I think EM is a flexible value, but viewport width always is a PX value. Am I wrong or do you know more about that one?