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CSS

Jean-Luc Robitaille
Jean-Luc Robitaille
13,864 Points
Posted by Jean-Luc Robitaille
Jean-Luc Robitaille
13,864 Points

Rem units not affected by <html> font size.

Hello everyone!

I am working on a small personal project, just to practice CSS Grid layout. Now I am simply trying to set my rem units so that 1rem = 10px. And then set a media query to change at 400px using rem units (so 40rem).

My CSS file is setup like this:

html{
    font-size: 62.5%; /* I also tried with font-size: 10px; */
}

@media screen and (min-width: 40rem){
}

My thinking was that the default html font-size was 16px. So 62.5% of 16px would give me an html font size of 10px. Then my query would switch at a screen size of 400px (40 x 10px).

But when I test it in either Chrome or Firefox, the media query changes the layout at 640px. So it looks like the root font-size is still 16px??

I don't understand why I'm not able to change the value of my rem units by changing the html font size.

Anyone has a clue?

Thanks!

Jean-Luc

Kieran Barker
Kieran Barker
15,028 Points
Kieran Barker
Kieran Barker
15,028 Points

This is really pissing me off! I can't figure it out either!