Width of devices browser (Responsive Web Design)

Question

How to know the width of my device browser? Where can I see that?

How can I know the width of a device browser? Like laptop, desktop, tablet mobile. It's just a simple question, I hope someone can answer.

Answer 1

You don't need to know device width. If you want to work on your code based on device width, just use % or vw.

width: 100vw; /* full screen width */

Answer 2

I'm sorry, my question is wrong after reading that again, my english is not that good. I will retype Kashyap Kumar ⭕ please answer again.

Answer 3

Kashyap Kumar ⭕ may I ask how? I fix now my question.