body {
  margin: 0;
  padding: 0;
  color: white;
  font-family: Helvetica;
  background-color: black; }

circle {
  fill: none;
  stroke: white;
  stroke-width: 5px;
  stroke-dasharray: 150 500;
  transform-origin: 50% 50%; }

.one {
  animation: loaderSpin 1s infinite linear reverse; }

.two {
  animation: loaderSpin 2s infinite linear alternate-reverse; }

.three {
  animation: loaderSpin 1.5s infinite linear; }

.loader {
  display: flex;
  width: 100vw;
  height: 100vh;
  flex-flow: column;
  justify-content: center;
  align-items: center; }

@keyframes loaderSpin {
  to {
    transform: rotate(360deg); } }