html,body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial;
  font-size: 14px;
  line-height: 1.428571429;
  color: #333333;
}

#chart-container {
  position: relative;
  display: inline-block;
  top: 10px;
  left: 10px;
  height: 420px;
  width: calc(100% - 24px);
  border: 2px dashed #aaa;
  border-radius: 5px;
  overflow: auto;
  text-align: center;
}