body {
  font-family: 'Montserrat';font-size: 22px;
	color: #666;
  background-color: #999;
}
div.a {
  text-align: center;
}
.flex-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 200px;
}
.loader {
  border: 2px solid #f3f3f3;
  border-radius: 50%;
  border-top: 2px solid #666;
  width: 200px;
  height: 200px;
  -webkit-animation: spin 4s linear infinite; /* Safari */
  animation: spin 4s linear infinite;
}
/* Safari */
@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); }
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }