html {
  height: 100%
}

body {
  margin: 0;
  min-height: 100%;
  background-color: #000000;
  background-size: 100% 100%;
}

.center {
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

.contain {
  display:block;
  width:100%; height:100%;
  object-fit: contain;
}

.stretch {
  display:block;
  width:100%; height:100%;
}

.cover {
  display:block;
  width:100%; height:100%;
  object-fit: cover;
}

.bottom {
  position: absolute;
  bottom: 5%;
  left: 50%;
  -ms-transform: translate(-50%, 0);
  transform: translate(-50%, 0);
}

.bottomLeft {
  position: absolute;
  bottom: 0;
  left: 0;
}

.bottomRight {
  position: absolute;
  bottom: 0;
  right: 0;
}

.loader {
  margin: 16px;
  border: 2px solid #f3f3f3;
  border-radius: 50%;
  border-top: 2px solid #007AFF;
  width: 18px;
  height: 18px;
  -webkit-animation: spin 2s linear infinite;
  animation: spin 2s linear infinite;
}

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

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