jupyterlab/packages/apputils-extension/style/splash.css

/*-----------------------------------------------------------------------------
| Copyright (c) 2014-2016, Jupyter Development Team.
|
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

#jupyterlab-splash {
  z-index: 1000;
  position: absolute;
  overflow: hidden;
  width: 100%;
  height: 100%;
  background-position: center 40%;
  background-repeat: no-repeat;
  background-size: cover;
  background-color: white;
}

#galaxy {
  position: relative;
  width: 100%;
  height: 100%;
}

#main-logo {
  background-image: var(--jp-image-jupyter-favicon);
  background-repeat: no-repeat;
  background-size: 100px;
  position: absolute;
  background-position: center;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.planet {
  background-repeat: no-repeat;
  background-size: cover;
  animation-iteration-count: infinite;
  animation-name: orbit;
}

#moon1.orbit {
  opacity: 1;
  animation: orbit 2s ease;
  width: 200px;
  height: 140px;
  margin-top: -53px;
  margin-left: -54px;
}

#moon2.orbit {
  opacity: 1;
  animation: orbit 2s ease;
  width: 132px;
  height: 180px;
  margin-top: -66px;
  margin-left: -85px;
}

#moon3.orbit {
  opacity: 1;
  display: flex;
  align-items: flex-end;
  animation: orbit 2s ease;
  width: 220px;
  height: 166px;
  margin-top: -96px;
  margin-left: -50px;
}

#moon1 .planet {
  background-color: #6F7070;
  height: 12px;
  width: 12px;
  border-radius: 50%;
}

#moon2 .planet {
  background-color: #767677;
  height: 16px;
  width: 16px;
  border-radius: 50%;
  float: right;
}

#moon3 .planet {
  background-color: #989798;
  height: 20px;
  width: 20px;
  border-radius: 50%;
}

.orbit {
  animation-iteration-count: 1;
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
}

.dot1, .dot2 {
width: 60%;
height: 60%;
display: inline-block;
position: absolute;
top: 0;
background-color: #333;
border-radius: 100%;

-webkit-animation: sk-bounce 2.0s infinite ease-in-out;
animation: sk-bounce 2.0s infinite ease-in-out;
}

.dot2 {
top: auto;
bottom: 0;
}

@-webkit-keyframes sk-rotate { 100% { -webkit-transform: rotate(360deg) }}
@keyframes sk-rotate { 100% { transform: rotate(360deg); -webkit-transform: rotate(360deg) }}

@-webkit-keyframes sk-bounce {
0%, 100% { -webkit-transform: scale(0.0) }
50% { -webkit-transform: scale(1.0) }
}

@keyframes sk-bounce {
0%, 100% { 
  transform: scale(0.0);
  -webkit-transform: scale(0.0);
} 50% { 
  transform: scale(1.0);
  -webkit-transform: scale(1.0);
}
}
@keyframes orbit {
  0% {
      transform: rotateZ(0deg);
  }
  100% {
      transform: rotateZ(-720deg);
  }
}

@keyframes orbit2 {
  0% {
      transform: rotateZ(0deg);
  }
  100% {
      transform: rotateZ(720deg);
  }
}