.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
  font-weight: 600;
  line-height: 1.3;
  color: #09365a;
  margin-top: 2em;
  margin-bottom: 0.6em;
}

.content h1 { font-size: 1.8em; }
.content h2 { font-size: 1.6em; }
.content h3 { font-size: 1.4em; }
.content h4 { font-size: 1.2em; }
.content h5 { font-size: 1.1em; }
.content h6 { font-size: 1em; }

.content h1,
.content h2,
.content h3 {
  border-bottom: 1px solid rgba(0,0,0,0.05);
  padding-bottom: 0.2em;
}