html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: 'Courier New', Courier, monospace;
  background: white;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

.page-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100%;
  box-sizing: border-box;
}