style.css

* {
  margin: 0;
  padding: 0;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: Roboto, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-weight: 300;
  background: #202123;
  color: #f8f8fb;
  font-size: 15px;
}

@media (min-width: 500px) {
  body {
    font-size: 16px;
  }
}

@media (min-width: 1000px) {
  body {
    font-size: 18px;
  }
}

.Bears {
  height: 100vh;
  background: #111 url(img/3.jpg) no-repeat 70% center;
}

.Foxes {
  height: 50vh;
  background: #111 url(img/2.jpg) no-repeat center 80% ;
}

.Horses {
  height: 150vh;
  background: #111 url(img/1.jpg) no-repeat bottom center;
}

.Docs,
.Bears,
.Foxes,
.Horses {
  background-size: cover;
  position: relative;
}

.Container {
  margin: 0 auto;
  max-width: 700px;
  position: relative;
  z-index: 1;
  padding: 20px;
}

.Overlay {
  position: absolute;
  top: 0;
  left: 0;
  background: rgba(0,0,0,0.4);
  width: 100%;
  height: 100%;
}

.Overlay--dark {
  background: rgba(0,0,0,0.6);
}

h1,
h2,
h3 {
  font-weight: 300;
  margin-bottom: 0.5em;
}

h2 {
  border-bottom: 1px solid rgba(255,255,255,0.25);
  display: inline-block;
  margin-bottom: 1em;
}

p {
  margin-bottom: 1em;
  line-height: 1.4em;
}

code,
pre {
  font-family: "Monaco", "Consolas", "Menlo", monospace;
  font-size: 0.9em;
  color: #eee;
}

pre {
  line-height: 1.5em;
  background: #28292c;
  border-radius: 3px;
  padding: 0.8em 1em;
  white-space: pre;
  word-break: keep-all;
  word-wrap: normal;
  overflow-x: scroll;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 1em;
}

.Color--blue {
  color: #6BD9ED;
}

.Color--green {
  color: #A7E040;
}

.Color--purple {
  color: #AE85FC;
}

.Color--red {
  color: #DC2B6A;
}

.Color--yellow {
  color: #E6DA7B;
}

.Color--gray {
  color: #75715F;
}

a {
  color: rgba(255,255,255,0.6);
}

small {
  display: block;
  margin-top: 50px;
}

ul {
  padding-left: 20px;
  line-height: 1.4em;
  margin-bottom: 1em;
}