前端实现大屏的简单思路

function resize() {
   var ratioX = $(window).width() / 11520;
   var ratioY = $(window).height() / 4320;
   $("body").css({
      transform: "scale(" + ratioX + "," + ratioY + ")",
      transformOrigin: "left top",
      backgroundSize: "100% 100%"
   });
   $("html").css({'overflow':'hidden'})
}
 
$(window, document).resize(function () {
   resize();
});
resize();

　　

11520目标屏宽度，4320目标屏高度，其他屏相对缩放充满全屏。

解决空白问题把外层设置为overflow: hidden;