html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #f7f7f7;
    color: #333;
    margin: 0;
    padding: 0;
    height: 100%;
  }

.wrapper {
  height: 100%;
  display: flex;
  flex-direction: column;
}