页面缩放scale

 coverScale() {
     const scaleWidth = window.innerWidth / 1920;
     const scaleHeight = window.innerHeight / 1080;
     const trueWidth = 1920* scaleWidth;
     const trueHeight = 1080* scaleHeight;
     this.marginTop = (trueHeight - 1080) / 2;
     this.marginLeft = (trueWidth - 1920) / 2;
     this.$refs.planningPage.style.transform = "scale(" + scaleWidth + "," + scaleHeight + ")";
     window.addEventListener("resize", this.coverScale)
 },

computed: {

  planningPageStyle() {
     return {

         marginTop: this.marginTop + "px",

         marginLeft: this.marginLeft + "px",
     }
  }
}