body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}

.app {
  margin: 0 20%;
  padding: 20px;
  padding-top: 0px;
  border-left: 10px solid lightgray;
  border-right: 10px solid lightgray;
  background-color: white;
}

h1 {
  font-weight: 700;
  font-size: 3em;
}