* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  line-height: 1.5;
}

body {
  font-family: Source Sans Pro, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: #272727;
}

h1 {
  font-size: 2.25rem;
  line-height: 1.2;
}

h2 {
  letter-spacing: 1px;
  line-height: 1.2;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

h2, h5 {
  font-size: 0.875rem;
  color: #555;
}

h5 {
  font-weight: 600;
  margin-bottom: 2rem;
}

.mono, code {
  font-weight: 400;
}

a {
  display: inline-flex;
  flex-direction: column;
  color: #272727;
  text-decoration: none;
}

a:hover {
  opacity: 0.75;
}

.title {
  font-size: 1.25rem;
  font-weight: 400;
  text-decoration: underline;
}

.subtitle {
  font-size: 0.875rem;
}

.wrapper {
  position: relative;
  width: 100%;
  max-width: 32rem;
  margin: 2rem auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.list {
  list-style: none;
  margin-bottom: 3.25rem;
}

.list__item {
  margin-bottom: 1.25rem;
}

@media (max-width: 640px) {
  html {
    font-size: 12px;
  }
}