HTML : Muliple div creation, jquery/javascript, performance/best practice

HTML : Muliple div creation, jquery/javascript, performance/best practice
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, Ensure that the video is playing before proceeding.
Then, type the letters 'awesome' on your keyboard as the next step.
Your YouTube progress bar will transform into a flashing rainbow.

Allow me to introduce myself briefly,
Greetings, my name is Delphi.
I am here to assist you in getting the answers you need.
HTML : Muliple div creation, jquery/javascript, performance/best practice
If you have specific questions that need answers, please don't hesitate to comment or chat with me.
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jquery/javascript, Muliple HTML : performance/best div practice creation,