媒体查询

@media (device-height:480px) and (-webkit-min-device-pixel-ratio:2){}

@media (device-height:568px) and (-webkit-min-device-pixel-ratio:2){}

@media screen and（max-width：375px）and（max-height：667px）{}

@media screen and（max-width：414px）and（max-height：736px）{}

@media all and (orientation:portrait) {}

@media all and (orientation:landscape) {}