* {
  margin: 0;
  border: 0;
  padding: 0;
  outline: 0;
  box-sizing: border-box;
  font-family: 'Roboto', sans-serif;
}

body,
html {
  background-color: #fafafa;
}

.main {
  display: flex;
  flex-direction: column;
  max-width: 960px;
  margin:150px auto;
  justify-content: center;
  text-align: center;
}

.polygon-chart {
  display: block;
  margin: 50px auto;
  width: 400px;
  height: 400px;
}