body {
  text-align: center;
  background: #EEE;
}

h1,h2,h3,h4,h5,h6 {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  font-weight: 100;
}

.hw-container {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.hw--blue {
  color: blue;
}