.pre-load {
    margin: 0 auto;
    height: 100vh;
    width: 100%;
    padding: 0;
    display: -webkit-box;
    display: -moz-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    justify-content: center;
    z-index: 9999999;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.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;
}

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