Скачать или смотреть HTML : How to make hover effect stays even after unhover?

HTML : How to make hover effect stays even after unhover?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I have a secret feature that I want to reveal to you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Then, type the letters 'awesome' on your keyboard as the next step.
Your YouTube progress bar will transform into a flashing rainbow.

An introduction to myself in a few words,
Greetings, my name is Delphi.
I am happy to help you with your questions.
HTML : How to make hover effect stays even after unhover?
I welcome your comments and chats if you have more detailed queries.
Your input is valuable, so please comment below if you have an answer or any insights to the answer.
Providing an answer will be acknowledged and appreciated with a 'heart' from me.
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