Drop here some pro tips for the responsiveness of webpage...
When I make any design using HTML & CSS on my smartphone and then view it from my PC , then it doesn't show properly. It works perfectly on mobile device but the elements show scattered separately on PC. How can I make the elements position fixed on mobile & PC both ?
You asked the wrong question. They shouldn't appear the same on wide screen device and narrow screen device.
Anyway, here is the basics of Responsive Design
P. S. You asked the same question 4 times, please delete the other 3 duplicates.