body {
  font-family: sans-serif;
  background-color: #222;
  color: #eee;
}

h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

header {
  margin-bottom: 2rem;
}

section {
  margin-bottom: 2rem;
}

h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

h1,
h2 {
  text-transform: lowercase;
  font-weight: normal;
  margin-top: 0;
}

p,
li {
  line-height: 1.5rem;
  margin-bottom: 0.25rem;
}

a {
  color: #6699ff;
}

ul {
  padding-left: 1rem;
}

.container {
  margin: 1rem;
}

.cols-container {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
}

.left-col {
  flex-basis: 33%;
}

.right-col {
  flex-basis: 50%;
}