HTML : Bootstrap button group pre-select button with html only

HTML : Bootstrap button group pre-select button with html only
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I have a hidden feature that I promised to tell you about.
This is a YouTube's feature which works on Desktop.
First, Make sure the video is currently in playing mode.
After that, type the word 'awesome' on your keyboard.
The progress bar on YouTube will be altered to a flashing rainbow.

Here's a short introduction about myself,
Hello, I am Delphi.
I am happy to help you with your questions.
HTML : Bootstrap button group pre-select button with html only
If you have more specific queries, please feel free to reach out through comments or chat.
If you have an answer or any relevant information to share, please comment below.
Your answer will be recognized and appreciated, and I will 'heart' it to show my appreciation.
: Bootstrap button with group button HTML html pre-select only