.grid {
  display: grid;
  align-content: center;
  grid-template-areas:
   "header"
   "sidebar"
   "content"
   "footer";
}

.header {
  grid-area: header;
  text-align: center;
}

.content {
  grid-area: content;
}

.sidebar {
  grid-area: sidebar;
}

.footer {
  grid-area: footer;
  text-align: center;
}

@media only screen and (max-width: 999px)  {
.grid {
  grid-template-columns: 1fr;
  grid-template-areas:
  "header"
  "sidebar"
  "content"
  "footer";
  }
}

@media only screen and (min-width: 1000px)   {
  .grid {
    grid-gap: 1rem;
    grid-template-columns: 30% auto;
    grid-template-areas:
    "header  header"
    "sidebar content"
    "footer  footer";
  }
}

.license img {
  max-width: 10em;
  display: inline;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
}

h1 {
  letter-spacing: 0.1em;
  font-size: 7vw;
}

h2 {
  font-size: 3em;
}

h3 {
  font-size: 2em;
}

.intro-lead {
  font-family: 'Montserrat', sans-serif;
  font-size: 20px;
}

.select-from {
  font-size: 16px;
}

code {
  word-break: break-all;
  word-wrap: break-word;
}

dd {
  padding-left: 24px;
}

dt {
  font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
}

img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

.sample-image {
  margin-bottom: 18px;
}


div {
  font-family: 'Merriweather', serif;
  color: white;
}

.btn {
  margin: 8px;
  display: inline-block;
  vertical-align: middle;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  padding-left: 2.5em;
  -webkit-transition-duration: 0.3s;
  transition-duration: 0.3s;
}

.btn:before {
  content: "💫";
  position: absolute;
  left: 1em;
  padding: 0 1px;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-transition-duration: 0.3s;
  transition-duration: 0.3s;
  -webkit-transition-property: transform;
  transition-property: transform;
  -webkit-transition-timing-function: ease-out;
  transition-timing-function: ease-out;
}

.btn:hover:before, .btn:focus:before, .btn:active:before {
  -webkit-transform: scale(1.3) translateZ(0);
  transform: scale(1.3) translateZ(0);
}

.contents-list {
  color: black;
}

.contents-list:hover {
  color: #2a9fd6;
}

.contents-list:before {
  content: "📼"
}

.codeblock {
  font-family: monospace
  padding: 2px 4px;
  font-size: 90%;
  color: #c7254e;
  background-color: #f9f2f4;
  border-radius: 4px;
}

.beware {
  font-size: 150%;
}

.footnote {
  font-size: 90%;
}