View cart side bar product count and +/- not visible

Hi Team,
After clicking the cart button, a side bar is opening and in that product count and +/- symbols are not visible. Only when I hover on them its visible. I have added a screen record video of the same. Please check and give me the solution to solve this. Please check the video link attached.
https://drive.google.com/file/d/1UIzzribiurUgHalOw-8p6L9xq2PXNfLh/view?usp=sharing

Thanks.