body {
  font-size: 1.6rem;
  font-family: "Open Sans", sans-serif;
  color: #4089a6;
  -webkit-font-smoothing: antialiased;
  /*&.is-changing{
    &:before,
    &:after{
      transform: translateY(0);
    }
  }*/
}
body:before, body:after {
  content: '';
  height: 50vh;
  width: 100%;
  position: fixed;
  left: 0;
  background: #feff3f;
  z-index: 1;
}
body:before {
  top: 0;
  -webkit-transform: translateY(-100%);
          transform: translateY(-100%);
}
body:after {
  bottom: 0;
  -webkit-transform: translateY(100%);
          transform: translateY(100%);
}

h1 {
  color: #1c2020;
  margin-bottom: 1em;
  font-size: 2.2rem;
  font-weight: 100;
}

.btn {
  display: inline-block;
  padding: 1.4em 1.6em;
  margin-bottom: 2em;
  border-radius: 50em;
  background-color: #343b3b;
  color: #ffffff;
  font-weight: bold;
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-decoration: none;
}
.btn:hover {
  background-color: #404949;
}

main {
  height: 100vh;
  /* padding: 10px; */
  text-align: center;
}
main .-content {
  position: relative;
  height: 100vh;
}
main .-content > div {
  height: 100%;
  overflow: hidden;
  overflow-y: auto;
}
main .-content.-index {
  background-color: #f6f6f6;
  display: table;
  width: 100%;
}
main .-content.-index > div {
  display: table-cell;
  vertical-align: middle;
}