examples/assets/example.css
body {
  padding: 1rem;
  margin: 0;
  font-family: "Trebuchet MS","Lucida Grande","Lucida Sans Unicode","Lucida Sans",Tahoma,sans-serif;
}

main {
  padding: 1em;
  width: 320px;
  margin: 0 auto;
}

@media screen and (max-width: 360px) {
  main {
    width: auto;
  }
}

h2 {
  margin: 0 0 0.25em 0;
}

p {
  margin: 0 0 0.2em 0;
}

button {
  display: block;
  padding: 1em 1.5em;
  background-color: transparent;
  border: 2px solid white;
  border-radius: 4px;
  color: white;
  font-size: 1em;
  font-weight: 300;
  outline: none;
}

.ReactNavigationController {
  position: relative;
  height: 480px;
  margin: 1em auto 2em auto;
  background: #DDDDDD;
  overflow: hidden;
}

.ReactNavigationControllerView,
.ReactNavigationControllerViewContent {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.ReactNavigationControllerView {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
}

.ReactNavigationControllerViewContent {
  color: white;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
}

/* HEADER */

.ReactNavigationControllerViewContent header {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-justify-content: space-between;
      -ms-flex-pack: justify;
          justify-content: space-between;
  padding: 0.75em;
}

.ReactNavigationControllerViewContent header button {

}

/* CONTENT */

.ReactNavigationControllerViewContent section {
  -webkit-flex: 1;
      -ms-flex: 1;
          flex: 1;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-justify-content: center;
      -ms-flex-pack: center;
          justify-content: center;
}

.ReactNavigationControllerViewContent section h3 {
  display: block;
  margin: 0 auto;
  font-size: 2rem;
}

.ReactNavigationControllerViewContent section button {
  margin: 1em auto;
}