html, body {
  height: 100%;
  margin: 0;
}
body {
  display: flex;
  flex-direction: column;
  font-family: Arial, sans-serif;
  background-color: #74b72e;
  color: #333;
}
main {
  flex: 1;
}
.container,
.content-wrapper,
h1 {
  margin: auto;
}