#particles-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

@keyframes blink-cursor {
  50% {
    background-color: transparent;
  }
}

@keyframes sweep {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.spinner, .spinner-sm {
    display: inline-block;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    -webkit-animation: spin 1s ease-in-out infinite;
}

.spinner {
    width: 20px;
    height: 20px;
}

.spinner-sm {
    width: 14px;
    height: 14px;
    border-width: 2px;
}

@keyframes spin {
  to { -webkit-transform: rotate(360deg); }
}
@-webkit-keyframes spin {
  to { -webkit-transform: rotate(360deg); }
}