.hero {
  background: #eee;
  padding: 20px;
  border-radius: 10px;
  margin-top: 1em;
}

.hero h1 {
  margin-top: 0;
  margin-bottom: 0.3em;
}

.c4 {
  padding: 10px;
  box-sizing: border-box;
}

.c4 h3 {
  margin-top: 0;
}

.c4 a {
  margin-top: 10px;
  display: inline-block;
}