body {

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}
#chartdiv {

  width: 90%;
  height: 70vh;
}

.container {
  height: 90vh;

  display: flex;
  justify-content: center;
  align-items: center;
}