About @media queries

Question

My code not work in My smart phone but its working in my pc.Please someone tell why @media queries is not working
My site link is
Please check and tell me.
engineershelper584.000webhostapp.com
Please tell me

Answer 1

Add this in your head tag👇

<meta name="viewport" content="width=device-width, initial-scale=1">

ref: https://www.w3schools.com/css/css_rwd_viewport.asp