HTML : How to hide input file and style the input='file' to icon/image

HTML : How to hide input file and style the input="file" to icon/image
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On Google, Search for "hows tech developer connect"

So here is a secret hidden feature I promissed to tell you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
After that, type the word 'awesome' on your keyboard.
You will see a flashing rainbow instead of a regular progress bar on YouTube.

Here's a brief description of who I am,
Hey, I am Delphi.
Let me aid you in resolving any queries you may have.
HTML : How to hide input file and style the input="file" to icon/image
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input="file" : icon/image HTML input the file to to hide How style and