Spinner

css

.spinner {
  margin: auto;
  height: 20px;
  width: 20px;
  -webkit-animation: spin 1.5s linear infinite;
  -moz-animation: spin 1.5s linear infinite;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 999; }

.spinner i {
  height: 20px;
  width: 20px;
  border-radius: 25px;
  display: block;
  position: absolute; }

.spinner i:before, .spinner i:after {
  content: '';
  display: block;
  position: absolute;
  height: inherit;
  width: inherit;
  border-radius: inherit; }

.spinner i:first-child:before {
  background: rgba(230, 45, 97, 0.9);
  -webkit-animation: rotate-top-left 1.5s linear infinite;
  -moz-animation: rotate-top-left 1.5s linear infinite; }

.spinner i:first-child:after {
  background: rgba(255, 129, 58, 0.9);
  -webkit-animation: rotate-top-right 1.5s linear infinite;
  -moz-animation: rotate-top-right 1.5s linear infinite; }

.spinner i:last-child:before {
  background: rgba(196, 92, 246, 0.9);
  -webkit-animation: rotate-bottom-left 1.5s linear infinite;
  -moz-animation: rotate-bottom-left 1.5s linear infinite; }

.spinner i:last-child:after {
  background: rgba(19, 222, 186, 0.9);
  -webkit-animation: rotate-bottom-right 1.5s linear infinite;
  -moz-animation: rotate-bottom-right 1.5s linear infinite; }

@-webkit-keyframes spin {
  0% {
    -webkit-transform: rotate(0deg); }

  50% {
    -webkit-transform: rotate(-180deg); }

  100% {
    -webkit-transform: rotate(-360deg); } }

@-webkit-keyframes rotate-top-right {
  0% {
    -webkit-transform: rotate(0deg); }

  50% {
    -webkit-transform: rotate(-180deg);
    -webkit-transform-origin: 20% 20%; }

  100% {
    -webkit-transform: rotate(-360deg); } }

@-webkit-keyframes rotate-top-left {
  0% {
    -webkit-transform: rotate(0deg); }

  50% {
    -webkit-transform: rotate(180deg);
    -webkit-transform-origin: 80% 20%; }

  100% {
    -webkit-transform: rotate(360deg); } }

@-webkit-keyframes rotate-bottom-right {
  0% {
    -webkit-transform: rotate(0deg); }

  50% {
    -webkit-transform: rotate(-180deg);
    -webkit-transform-origin: 80% 80%; }

  100% {
    -webkit-transform: rotate(-360deg); } }

@-webkit-keyframes rotate-bottom-left {
  0% {
    -webkit-transform: rotate(0deg); }

  50% {
    -webkit-transform: rotate(180deg);
    -webkit-transform-origin: 20% 80%; }

  100% {
    -webkit-transform: rotate(360deg); } }

/* horizonal 3 dots loading animation */
.loading-circle-container {
  padding: 0 0 30px 0;
  margin: 30px auto;
  width: 36px; }

.loading-circle {
  background-color: #2a2f33;
  float: left;
  height: 8px;
  margin-left: 4px;
  width: 8px;
  -moz-animation-name: bounce_loading-circle;
  -moz-animation-duration: 1.65s;
  -moz-animation-iteration-count: infinite;
  -moz-animation-direction: linear;
  -moz-border-radius: 5px;
  -webkit-animation-name: bounce_loading-circle;
  -webkit-animation-duration: 1.65s;
  -webkit-animation-iteration-count: infinite;
  -webkit-animation-direction: linear;
  -webkit-border-radius: 5px;
  -ms-animation-name: bounce_loading-circle;
  -ms-animation-duration: 1.65s;
  -ms-animation-iteration-count: infinite;
  -ms-animation-direction: linear;
  -ms-border-radius: 5px;
  -o-animation-name: bounce_loading-circle;
  -o-animation-duration: 1.65s;
  -o-animation-iteration-count: infinite;
  -o-animation-direction: linear;
  -o-border-radius: 5px;
  -webkit-animation-name: bounce_loading-circle;
  animation-name: bounce_loading-circle;
  -webkit-animation-duration: 1.65s;
  animation-duration: 1.65s;
  -webkit-animation-iteration-count: infinite;
  animation-iteration-count: infinite;
  -webkit-animation-direction: linear;
  animation-direction: linear;
  border-radius: 5px; }

#loading-circle_1 {
  -webkit-animation-delay: 0.33s;
  -ms-animation-delay: 0.33s;
  animation-delay: 0.33s; }

#loading-circle_2 {
  -webkit-animation-delay: 0.77s;
  -ms-animation-delay: 0.77s;
  animation-delay: 0.77s; }

#loading-circle_3 {
  -webkit-animation-delay: 0.99s;
  -ms-animation-delay: 0.99s;
  animation-delay: 0.99s; }

@-webkit-keyframes bounce_loading-circle {

  50% {
    background-color: #FFFFFF; }
 }

@-ms-keyframes bounce_loading-circle {

  50% {
    background-color: #FFFFFF; }
 }

@keyframes bounce_loading-circle {

  50% {
    background-color: #FFFFFF; }
 }

html

<div class="spinner">
  <i></i><i></i>
</div>