Hello,
I use the semantic-ui label in my app to display some information. But When I set the size of label to mini, the size looks like normal size in chrome browser. But in firefox the size display correct.
And then I checked the example page from official web page
http://semantic-ui.com/elements/label.html
You can check the size segment, the Mini Tiny Small Medium looks like the same size.
Thanks.
The sizes look fine to me, I'm using chrome as well. What version of your chrome are you using?

50.0.2661.102 m
51.0.2704.84 m not working, too
Fine here with the same Chrome as you, @xqandpan.
51.0.2704.84 64-bit, El Capitan.

52.0.2739.2 dev (64-bit)
We dont currently support bug request for development versions. Quite often display errors are mistaken for bugs in the browsers renderer.
@jlukic
Thanks! But, Problems also exist in Chrome 50.0.2661.102(64-bit) and 51.0.2704.84 (64-bit) .