How can I disable highlighting in html or JS?

Question

I need to disable the highlighting of selected text on my web app. I have a good reason for doing this and know that this is generally a bad idea. But I need to do it anyway

Answer 1

I just used * to disable highlighting or outline highlight for all elements

*{
 outline: none;
}

answer reference: How to remove focus border (outline) around text/input boxes? (Chrome)