CSS Responsive Design for Mobile

The Challenge is easy for me, but is very useful Just imagine, a family or a group of friends sitting in any restaurant and they want to pay bill so without any hesitation they just enter the amount, Tip % and number of person want to pay and Click and Tada... they have the amount. And that's what Coding makes the thing interesting, When I create any program or website, I first thought it's real world use and it's empower me. Thank You Today More