.md-spinner {
  width: 15px;
  height: 15px;
  border: 2px solid;
  border-bottom-color: transparent !important;
  border-radius: 50%;
  -webkit-animation: md-infinite-spinner linear 1.2s infinite;
  -moz-animation: md-infinite-spinner linear 1.2s infinite;
  -o-animation: md-infinite-spinner linear 1.2s infinite;
  animation: md-infinite-spinner linear 1.2s infinite;
}

@keyframes md-infinite-spinner {
  0% {
    transform: rotate(0);
  }
  25% {
    transform: rotate(90deg);
  }
  50% {
    transform: rotate(180deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@-webkit-keyframes md-infinite-spinner {
  0% {
    transform: rotate(0);
  }
  25% {
    transform: rotate(90deg);
  }
  50% {
    transform: rotate(180deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@-moz-keyframes md-infinite-spinner {
  0% {
    transform: rotate(0);
  }
  25% {
    transform: rotate(90deg);
  }
  50% {
    transform: rotate(180deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@-o-keyframes md-infinite-spinner {
  0% {
    transform: rotate(0);
  }
  25% {
    transform: rotate(90deg);
  }
  50% {
    transform: rotate(180deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

body {
  font: 400 16px/1.5 "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

div {
  margin: 70px auto;
}

h1 {
  text-align: center;
}