iphoneX();
function iphoneX(){
var oMeta = document.createElement('meta');
oMeta.setAttribute('name',"viewport");
oMeta.setAttribute('content',"width=device-width,initial-scale=1.0,viewport-fit=cover");
document.getElementsByTagName('head')[0].appendChild(oMeta);
}
@media only screen and (device- 375px) and (device-height: 812px) and (-webkit-device-pixel-ratio: 3){
body{
padding-bottom: constant(safe-area-inset-bottom);
padding-bottom: env(safe-area-inset-bottom);
}
.iphonex-pt{
padding-top: constant(safe-area-inset-top);
padding-top: env(safe-area-inset-top);
}
.iphonex-pb{
padding-bottom: constant(safe-area-inset-bottom);
padding-bottom: env(safe-area-inset-bottom);
}
.iphonex-mt{
margin-top: constant(safe-area-inset-top);
margin-top: env(safe-area-inset-top);
}
.iphonex-mb{
margin-bottom: constant(safe-area-inset-bottom);
margin-bottom: env(safe-area-inset-bottom);
}
.iphonex-pl{
padding-left: constant(safe-area-inset-left);
padding-left: env(safe-area-inset-left);
}
.iphonex-pr{
padding-right: constant(safe-area-inset-right);
padding-right: env(safe-area-inset-right);
}
.iphonex-ml{
margin-left: constant(safe-area-inset-left);
margin-left: env(safe-area-inset-left);
}
.iphonex-mr{
margin-right: constant(safe-area-inset-right);
margin-right: env(safe-area-inset-right);
}
.iphonex-bd-top-bg{
border-top: 88px solid transparent;
}
.iphonex-bd-top{
border-top: 44px solid transparent;
}
.iphonex-bd-bottom{
border-bottom: 34px solid transparent;
}
}
3.js 方法，有些接口必须用js 去处理，不能用css样式实现，那么就可以这样做
if($(window).width() === 375 && $(window).height() === 724 && window.devicePixelRatio === 3){
$(".phonex-pb").css("padding-bottom","34px");
}