.loading {
    background: #4b9cdb;
    position: fixed;
    width: 100%;
    height: 100%;
}
.circle {
  width: 80px;
  height: 80px;
  border-radius: 40px;
  box-sizing: border-box;
  border: solid 10px rgba(255, 255, 255, 0.2);
  border-top-color: #FFF;
  animation: spin 1s infinite linear;
  left:50%;
  top:50%;
  position: relative;
  margin-left:-40px; /* -1/2 width */
  margin-top:-40px; /* -1/2 height */
}

@keyframes bouncy {
  40% {
    height: 40px;
  }
  50% {
    transform: translate(0, 65px);
    height: 34px;
    border-radius: 20px;
  }
  65% {
    height: 40px; 
  }
}

@keyframes push {
  50% {
    margin-left: 56px;
  }
}

@keyframes slide {
  50% {
    margin-top: 25px;
  }
}

@keyframes pulse { 
  50% { 
    border-width: 30px;
  } 
}

@keyframes spin { 
  100% { 
    transform: rotate(360deg); 
  } 
} 

@keyframes cross {
  50% {
    margin-left: 60px;
  }
}