body {
  margin: 0;
  padding: 0;
  background:#262626;
}
.splash-screen {
  position: absolute;
  z-index: 1000;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background-color: #f2f3f8;
  font-family: Poppins, Helvetica, 'sans-serif';
  background-color: #262626;
}

.loader {
  width: 150px;
  aspect-ratio: 1;
  display: grid;
  border: 4px solid #0000;
  border-radius: 50%;
  border-right-color: #25b09b;
  animation: l15 1s infinite linear;
}
.loader::before,
.loader::after {    
  content: "";
  grid-area: 1/1;
  margin: 4px;
  border: inherit;
  border-radius: 50%;
  animation: l15 2s infinite;
}
.loader::after {
  margin: 12px;
  animation-duration: 3s;
}
@keyframes l15{ 
  100%{transform: rotate(1turn)}
}