.intro {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease-out, visibility 0s 0.3s;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 50px;
  background-color: #2a81d7;
  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;
  }
}