css判斷iphoneX、iphoneXs、iphoneXs Max、iphone XR

//iphoneX、iphoneXs

@media only screen and (device-width: 375px) and (device-height: 812px) and (-webkit-device-pixel-ratio: 3) {
}

即: 設備屏幕可見寬度為375px， 可見高度為812px及設備像素比為3

 

//iphone Xs Max
@media only screen and (device-width: 414px) and (device-height: 896px) and (-webkit-device-pixel-ratio:3) {
}

 

//iphone XR
@media only screen and (device-width: 414px) and (device-height: 896px) and (-webkit-device-pixel-ratio:2) {
}

備注：

only(限定某種設備)
screen 是媒體類型里的一種