Скачать или смотреть HTML : jquery .css/.attr/.addClass not working on span tag

HTML : jquery .css/.attr/.addClass not working on span tag
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I promised to reveal a secret feature to you, and now it's time to share it.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Then, type the letters 'awesome' on your keyboard as the next step.
It will change your youtube progress bar into a flashing rainbow.

A brief introduction of myself,
Hi, my name is Delphi, nice to meet you.
I am here to assist you in getting the answers you need.
HTML : jquery .css/.attr/.addClass not working on span tag
Please don't hesitate to let me know if you have more specific queries by commenting or chatting with me.
Please feel free to share your answer or insights on the answer by leaving a comment below.
If you provide an answer, I will 'heart' it as a sign of gratitude.
tag jquery on : .css/.attr/.addClass HTML span working not