The system identifies the errors and areas that don’t conform to internet design standards. Responsive net design is a newer strategy, based mostly on CSS3, and a deeper degree of per-device specification throughout the page’s type sheet via an enhanced use of the CSS @media rule. In March 2018 Google announced they might be rolling out mobile-first indexing. Sites utilizing responsive design are well positioned to make sure they meet this new approach. Marketing and communication design on an web site might determine what works for its target market.