body {
  font-family: sans-serif;
}

.title {
  color: #635bff;
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 300px;
  height: 300px;
  text-align: center;
}

.loader {
  display: block;
  margin: 0 auto;
  border: 16px solid #f3f3f3;
  border-top: 16px solid #635bff;
  border-radius: 50%;
  width: 120px;
  height: 120px;
  animation: spin 2s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}


/**************************/
/* CSS Animations Classes */
/**************************/

/*
The following class-endings: *-enter, *-enter-active, *-exit, *-exit-active,
have very specific meanings to <CSSTransition />
(see more: https://reactcommunity.org/react-transition-group/css-transition)
*/

.fade-enter {
    opacity: 0;
    transform: translate(0, 25px);
    z-index: 1;
}
.fade-enter.fade-enter-active {
    opacity: 1;
    transform: translate(0, 0);

    transition: opacity 250ms ease-out, transform 300ms ease;
}
.fade-exit {
    opacity: 1;
    transform: translate(0, 0);
}
.fade-exit.fade-exit-active {
    opacity: 0;
    transform: translate(0, 30px);

    transition: opacity 250ms ease-out, transform 300ms ease;
}