Implement responsive Web design through CSS3 Media Query

The idea of Responsive Web design is that the design and development of pages should be Responsive and adjusted according to user behavior and the device environment (system platform, screen size, screen orientation, etc.).

The specific practices are composed of many aspects, including elastic grids and layouts, images, the use of CSS media queries, and so on.

Whether the user is using a laptop or an iPad, our pages should be able to automatically switch resolution, picture size, and related scripting to suit different devices.

In other words, the page should have the ability to automatically respond to the user's device environment. That way, we don't have to design and develop specific versions of the new devices that keep coming.