html {
  width: 100%
}

body {
  overflow-x: hidden!important
}

body.show-spinner>main {
  overflow: hidden!important
}

body.show-spinner>* {
  opacity: 0
}

body.show-spinner:after {
  content: " ";
  display: inline-block;
  width: 30px;
  height: 30px;
  border: 2px solid rgba(0, 0, 0, .2);
  border-radius: 50%;
  border-top-color: rgba(0, 0, 0, .3);
  animation: a 1s ease-in-out infinite;
  -webkit-animation: a 1s ease-in-out infinite;
  left: calc(50% - 15px);
  top: calc(50% - 15px);
  position: fixed;
  z-index: 1
}

@keyframes a {
  to {
    transform: rotate(1turn)
  }
}