Xuefeng3600media query is used accurately on the Response webpage. We all know the importance of media query in html5 for the response webpage. It provides us with an effective method to detect screen devices, when developing a page, we can easily check the screen size based on the media query and load the corresponding css style. However, from our common desktop and tablet computers to smartphones, the screen size is so large that many web Front-end developers have a headache. Recently I found a very practical website responsivewebcss, which provides developers with a dedicated screen size detection tool. after entering the website, they only need to select the corresponding screen size, this tool will automatically generate corresponding media queries for you. The following is the summary of the media query code, which involves the screen size of mainstream devices. I hope it will help you. When we use it, we can directly put the dependent css style into the media query. /* The screen size of a flat device (such as ipad) is between PX and PX, and the screen size of the device is horizontal */@ media only screen and (min-width: 481px) and (max-width: 1024px) and (orientation: landscape) {}/* the screen size of an ipad or large-sized smartphone device (768px) is between 321px and 1024px, and the device is in portrait status */@ media only screen and (min-width: 321px) and (max-width: 1024px) and (orientation: portrait) {}/* Phone landscape screen status (480px) */@ media only screen and (min-width: 321px) and (max-width: 480px) and (orientation: landscape) {}/* Phone portrait screen status (320px) */@ media only screen and (max-width: 320px ){}