Considering the current retina screen, it is generally better to press 640 for cutting. If you press 320 for cutting, it will be blurry on the retina screen. Press 640 for cutting, and then use background-size to control it
Cut according to 640. In order to adapt to the retina screen on the mobile phone, it is actually best to cut the picture three times to ensure that the picture is displayed clearly
http://www.cnblogs.com/beiz/p...
Just press 320 to cut, 320 is the actual pixel, and 640 is the pixel processed by the mobile phone.
http://www.w3cplus.com/css/A-...
Considering the current retina screen, it is generally better to press 640 for cutting. If you press 320 for cutting, it will be blurry on the retina screen. Press 640 for cutting, and then use
background-size
to control itCut according to 640. In order to adapt to the retina screen on the mobile phone, it is actually best to cut the picture three times to ensure that the picture is displayed clearly
What you need is a responsive layout.