html, body {
  background-color: #222;
  color: #fff;
  display: block;
  position: relative;
  height: 100%;
  min-height: 100%;
}

.share-tech-mono {
  font-family: 'Share Tech Mono', monospace;
}

.main-container {
  text-align: center;
  white-space: nowrap;
  display: block;
  position: relative;
  height: 100%;
}

.main-container:before {
  content: '';
  display: inline-block;
  height: 100%;
  vertical-align: middle;
  margin-right: -0.25em;
}

.main {
  text-align: center;
  display: inline-block;
  vertical-align: middle;
  width: 100%;
  max-width: 600px;
}

.img-responsive {
  margin-bottom: 30px;
}

.title {
  padding: 15px;
  text-align: center;
  font-size: 16px;
  white-space: normal;
}

@media (min-width: 450px) {
  .title {
    padding: 15px;
    text-align: center;
    font-size: 20px;
    white-space: normal;
  }
}