.intro {
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s ease-out, visibility 0s .3s;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 50px;
  background-color: #2c2c2d;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.intro h1, .intro p {
  font-family: 'Source Sans Pro', sans-serif;
  color: #ffffff;
}
.intro h1 {
  font-size: 50px;
  font-weight: 300;
  margin-bottom: 35px;
  letter-spacing: 1.3px;
  text-align: center;
  max-width: 568px;
}
.intro p {
  font-size: 24px;
  font-weight: 400;
}
.intro img {
  width: 162px;
  height: 80px;
  margin: 31px 0 0 -18px;
}
.intro .dots {
  position: relative;
  display: inline-block;
  font-size: 12px;
  width: 80px;
  height: 20px;
}
.intro .dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #ffffff;
  position: absolute;
  animation-duration: 0.5s;
  animation-timing-function: ease;
  animation-iteration-count: infinite;
}
.intro .dot1, .intro .dot2 { left: 0; }
.intro .dot3 { left: 30px; }
.intro .dot4 { left: 60px; }

.intro .dot1 { animation-name: reveal; }
.intro .dot2, .intro .dot3 { animation-name: slidepx; }
.intro .dot4 {
  animation-name: reveal;
  animation-direction: reverse;
}
@keyframes reveal {
  from { transform: scale(0.001); }
  to { transform: scale(1); }
}
@keyframes slidepx { to { transform: translateX(30px); } }
.intro .center {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.intro .tooltip {
  position: absolute;
  bottom: 50px;
  left: 50px;
  max-width: 500px;
}
my-app:empty + .intro { opacity: 1; visibility: visible; }
@media screen and (max-width: 900px) {
  .intro h1 { font-size: 32px; }
  .intro .tooltip { display: none; }
}