* {
  font-family: inherit;
  font-size: 100%;
  font-style: inherit;
  font-weight: inherit;
  text-decoration: none;
  color: inherit;
  line-height: inherit;
  border: 0;
  margin: 0;
  outline: 0;
  padding: 0;
  vertical-align: baseline;

  -moz-box-sizing: border-box;
       box-sizing: border-box;

  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:focus, :active, :hover {
  outline: 0;
}

::-moz-selection {
  background: #666;
  color: #fff;
  text-shadow: none;
}

::selection {
  background: #666;
  color: #fff;
  text-shadow: none;
}

html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  cursor: default;

  font-size: 125%;
  font-family: "Helvetica Neue", "Helvetica", "Ubuntu", "Segoe UI", Verdana, sans-serif;

  color: #666;
  background-color: #fff;

  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;
      -ms-text-size-adjust: 100%;
}

body {
  height: 100%;
  line-height: 1.5;
}

main {
  position: relative;
  overflow: hidden;
  height: 100%;
  display:block;
}

nav {
  height: 100%;
  overflow: auto;
}

section, header {
  width: 100%;
  max-width: 400px;
}

section {
  margin: 0 auto;
}

h4 {
  color: #FFF;
  padding: .5em 1rem;
  font-size: .7em;
  font-weight: bold;
  text-transform: uppercase;
}

section:first-child {
  margin-top: 6.25%;
}

section:last-child {
  margin-bottom: 6.25%;
}

section:nth-child(2) header {
  background: #57A922;
}

section:nth-child(3) header {
  background: #F7AB00;
}

section:nth-child(4) header {
  background: #EA6F00;
}

section:nth-child(5) header {
  background: #D5262C;
}

section:nth-child(6) header {
  background: #7E2985;
}

section:nth-child(7) header {
  background: #1985D4;
}

article {
  margin: 1rem;
}

p, ul {
  margin-bottom: 1em;
}

li {
  margin-bottom: .25em;
  margin-left: 1em;
}

h1 {
  font-size: 1.5em;
  font-weight: 500;
}

a {
  border-bottom: 2px solid #ccc;
}

a:focus, a:active {
  border-color: #1985D4;
}

a:active {
  color: #1985D4;
}

strong {
  font-weight: bold;
}

small {
  font-size: .8em;
}

code {
  font-family: Menlo, "Ubuntu Mono", Consolas, "Courier New", monospace;
  font-size: .9em;
}

.btn {
  display: inline-block;
  padding: .25em .5em;
  border-radius: 2px;
  border: 2px solid #ccc;
}

.btn:active {
  background: #1985D4;
  color: #fff;
}

.arrow {
  float: right;
  color: #ccc;
  padding-bottom: 18px;
  background-image: url("data:image/svg+xml;base64,PHN2ZyB2aWV3Qm94PSIwIDAgNiA2IiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxwYXRoIGQ9Im0wIDJoMnYtMmgydjJoMmwtMyA0eiIgZmlsbD0iI2RkZCIvPjwvc3ZnPg==");
  background-repeat: no-repeat;
  background-position: bottom;
  background-size: 18px;
}