@import "https://js.arcgis.com/4.21/@arcgis/core/assets/esri/themes/dark/main.css";
#viewDiv {
  padding: 0;
  margin: 0;
  height: 80vh;
  width: 90%;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 0;
}