.app-loading {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  top: 10em;
}
.app-loading p {
  display: block;
  font-size: 1.17em;
  margin-inline-start: 0px;
  margin-inline-end: 0px;
  font-weight: normal;
}

/* thanks to https://github.com/tobiasahlin/SpinKit */
.app-loading .sk-cube-grid {
  width: 40px;
  height: 40px;
  margin: 100px auto;
}

.app-loading .sk-cube-grid .sk-cube {
  width: 33%;
  height: 33%;
  background-color: #02558b;
  float: left;
  -webkit-animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;
  animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;
}
.app-loading .sk-cube-grid .sk-cube1 {
  -webkit-animation-delay: 0.2s;
  animation-delay: 0.2s;
}
.app-loading .sk-cube-grid .sk-cube2 {
  -webkit-animation-delay: 0.3s;
  animation-delay: 0.3s;
}
.app-loading .sk-cube-grid .sk-cube3 {
  -webkit-animation-delay: 0.4s;
  animation-delay: 0.4s;
}
.app-loading .sk-cube-grid .sk-cube4 {
  -webkit-animation-delay: 0.1s;
  animation-delay: 0.1s;
}
.app-loading .sk-cube-grid .sk-cube5 {
  -webkit-animation-delay: 0.2s;
  animation-delay: 0.2s;
}
.app-loading .sk-cube-grid .sk-cube6 {
  -webkit-animation-delay: 0.3s;
  animation-delay: 0.3s;
}
.app-loading .sk-cube-grid .sk-cube7 {
  -webkit-animation-delay: 0s;
  animation-delay: 0s;
}
.app-loading .sk-cube-grid .sk-cube8 {
  -webkit-animation-delay: 0.1s;
  animation-delay: 0.1s;
}
.app-loading .sk-cube-grid .sk-cube9 {
  -webkit-animation-delay: 0.2s;
  animation-delay: 0.2s;
}

@-webkit-keyframes sk-cubeGridScaleDelay {
  0%,
  70%,
  100% {
    -webkit-transform: scale3D(1, 1, 1);
    transform: scale3D(1, 1, 1);
  }
  35% {
    -webkit-transform: scale3D(0, 0, 1);
    transform: scale3D(0, 0, 1);
  }
}

@keyframes sk-cubeGridScaleDelay {
  0%,
  70%,
  100% {
    -webkit-transform: scale3D(1, 1, 1);
    transform: scale3D(1, 1, 1);
  }
  35% {
    -webkit-transform: scale3D(0, 0, 1);
    transform: scale3D(0, 0, 1);
  }
}