.landing-container {
  position: fixed;
  width: 100%;
  height: 100vh;
  top: 0px;
  left: 0px;
  background: rgba(0, 0, 0, 0.841);
  z-index: 99;
}

.landing-container.active {
  transform: translateY(-1500px);
  -webkit-transform: translateY(-1500px);
  -moz-transform: translateY(-1500px);
  -ms-transform: translateY(-1500px);
  -o-transform: translateY(-1500px);
  transition: .5s 1s ease-out;
  -webkit-transition: .5s 1s ease-out;
  -moz-transition: .5s 1s ease-out;
  -ms-transition: .5s 1s ease-out;
  -o-transition: .5s 1s ease-out;
}
.loading.close {
  opacity: 0;
  transition: .1s ease;
  -webkit-transition: .1s ease;
  -moz-transition: .1s ease;
  -ms-transition: .1s ease;
  -o-transition: .1s ease;
}
.landing-wrap {
  position: relative;
  width: 100%;
  height: 100%;
}
.loading {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  opacity: 1;
  transition: .2s ease;
  -webkit-transition: .2s ease;
  -moz-transition: .2s ease;
  -ms-transition: .2s ease;
  -o-transition: .2s ease;
}
.loading-boxes {
  position: relative;
  background: white;
  width: 30px;
  height: 30px;
  margin: 10px;
  border-radius: 50%;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  -ms-border-radius: 50%;
  -o-border-radius: 50%;
}
.loading-boxes:nth-child(1) {
  background: red;
  animation: loading-box1 2s ease-in-out infinite;
  -webkit-animation: loading-box1 2s ease-in-out infinite;
  transform-style: preserve-3d;
}
.loading-boxes:nth-child(2) {
  animation: loading-box2 2s ease-in-out infinite;
  -webkit-animation: loading-box2 2s ease-in-out infinite;
  transform-style: preserve-3d;
  border-radius: 50%;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  -ms-border-radius: 50%;
  -o-border-radius: 50%;
}
.loading-boxes:nth-child(2)::before, 
.loading-boxes:nth-child(2)::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 3px;
  background: white
}
.loading-boxes:nth-child(2)::before {
  top: 50%;
  left: -20px;
  animation: lineA 2s ease-in-out infinite;
  -webkit-animation: lineA 2s ease-in-out infinite;
}
.loading-boxes:nth-child(2)::after {
  bottom: 50%;
  left: 30px;
  animation: lineB 2s ease-in-out infinite;
  -webkit-animation: lineB 2s ease-in-out infinite;
}
.loading-boxes:nth-child(3) {
  background: red;
  animation: loading-box3 2s ease-in-out infinite;
  -webkit-animation: loading-box3 2s ease-in-out infinite;
  transform-style: preserve-3d;
}