style.css

body {
  background: rgb(11, 118, 195);
/*   animation: bgg 16087ms ease-in alternate infinite; */
}
.start{
  position:relative;
  top:56px;
  width:max-content; 
  right:50px;
  color:white;
  font-family:sans-serif;
  font-weight:100;
  font-size:large;
}
/* @keyframes bgg {
  0% { background: rgba(0, 153, 255, 1); }
  50% { background: rgba(41, 255, 121, 1); }
  100% { background: rgba(255, 74, 88, 1); }
} */
.loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  width: 50px;
  height: 50px; 
  margin: auto;
}
.loader .circle {
  position: absolute;
  width: 38px;
  height: 38px;
  opacity: 0;
  transform: rotate(225deg);
  animation-iteration-count: infinite;
  animation-name: orbit;
  animation-duration: 5.5s;
}
.loader .circle:after {
  content: '';
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 5px;
  background: #fff;
  box-shadow: 0 0 9px rgba(255, 255, 255, .3);
}
.loader .circle:nth-child(2) {
  animation-delay: 240ms;
}
.loader .circle:nth-child(3) {
  animation-delay: 480ms;
}
.loader .circle:nth-child(4) {
  animation-delay: 720ms;
}
.loader .circle:nth-child(5) {
  animation-delay: 960ms;
}
.loader .circle:nth-child(6) {
  animation-delay: 1200ms;
}
.loader .circle:nth-child(7) {
  animation-delay: 1440ms;
}
.loader .bg {
  position: absolute;
  width: 70px;
  height: 70px;
  margin-left: -16px;
  margin-top: -16px;
  border-radius: 13px;
  background-color: inherit;
  animation: bgg 16087ms ease-in alternate infinite;
}
@keyframes orbit {
  0% {
    transform: rotate(225deg);
    opacity: 1;
    animation-timing-function: ease-out;
  }
  7% {
    transform: rotate(345deg);
    animation-timing-function: linear;
  }
  30% {
    transform: rotate(455deg);
    animation-timing-function: ease-in-out;
  }
  39% {
    transform: rotate(690deg);
    animation-timing-function: linear;
  }
  70% {
    transform: rotate(815deg);
    opacity: 1;
    animation-timing-function: ease-out;
  }
  75% {
    transform: rotate(945deg);
    animation-timing-function: ease-out;
  }
  76% {
    transform: rotate(945deg);
    opacity: 0;
  }
  100% {
    transform: rotate(945deg);
    opacity: 0;
  }
}