Why did the icons become pixelated?

Question

css

I used icons from fontawesome and noticed that they became very pixelated (uneven). It looks ugly:

Even in the screenshot you can see how uneven they are. And the size is small in general. I don’t understand why everything is normal everywhere and only in one place such garbage ...

Answer 1

I would check if there are any twists, tricky overlays, effects. Something that can be sent to the video card for processing. Hehe, the artifacts look like fonts in win xp, which couldn't smooth text vertically.