body {
  font-size: 17px;
  line-height: 1.3;
  color: #2e2c2c;
  font-family: Helvetica, Arial, sans-serif;
  padding: 2em;
  max-width: 600px;
}

@media (min-width: 740px) {
  body {
    font-size: 18px;
  }
}

h1 {
  margin-bottom: 0.2em;
}

.subtitle {
  color: #666;
  margin-top: 0;
  margin-bottom: 2em;
}

ul {
  padding-left: 0;
}

li {
  list-style: none;
  margin-bottom: 0.5em;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:visited {
  color: inherit;
}

.arrow {
  position: relative;
  display: inline-block;
  transition: transform 0.25s ease;
}

.arrow:before {
  pointer-events: none;
  content: "→";
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  transform: translateX(-1.5em) translateZ(0);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

a:hover .arrow,
.arrow:hover {
  transform: translateX(1em) translateZ(0);
}

a:hover .arrow:before,
.arrow:hover:before {
  transform: translateX(-1em) translateZ(0);
  opacity: 1;
}