Invalid email input renders glowing red border

[pae-blue]

Bug Report

Invalid email input renders a glowing red border in addition to timid red bottom-border.

Seen in Firefox for input fields with type "email".

Steps to Reproduce

1. Open republik.ch/anmelden without being signed in
2. Type faulty email address in input field then lose focus

Actual Results

Red glowing border around input field flares up.

https://user-images.githubusercontent.com/331800/112803476-9af02400-9073-11eb-9815-058c85545305.mov

Expected Results

No red glowing border around input field flares up.

Environment

• Firefox 86