Скачать или смотреть CSS : How to change Bootstrap 4 tooltip opacity?

CSS : How to change Bootstrap 4 tooltip opacity?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I'm going to share a hidden feature with you.
This is a YouTube's feature which works on Desktop.
First, Make sure the video is currently in playing mode.
Next, enter the letters 'awesome' on your keyboard.
It will change your youtube progress bar into a flashing rainbow.

A brief introduction of myself,
Greetings, my name is Delphi.
Allow me to support you in answering your questions.
CSS : How to change Bootstrap 4 tooltip opacity?
Don't hesitate to leave a comment or start a chat if you have a more specific question.
Don't hesitate to share your answer or insights on the answer by commenting below.
I will express my appreciation for your answer by 'hearting' it.
: 4 opacity? tooltip change How to CSS Bootstrap