URL: https://www.mms.telekom.de/OTP/

Browser / Version: Firefox 106.0
Operating System: Mac OS X 10.15
Tested Another Browser: Yes Safari and Chrome

Problem type: Design is broken
Description: Items not fully visible
Steps to Reproduce:

1. Open the website
2. You see the website with a broken design.

Only Firefox seems to be affected and only version 100 or newer. It's probably caused by a bad user agent sniffing because the websites looks as expected if you use a current Firefox version and change the user agent to the one from Firefox 99.

View the screenshot

From webcompat.com with ❤️