.loader-app {
  position: fixed;
  z-index: 999;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s;
}

.loader--hide {
  opacity: 0;
  display: none;
}

@keyframes grow {
  0%,
  100% {
    -webkit-transform: scaleY(1);
    -ms-transform: scaleY(1);
    -o-transform: scaleY(1);
    transform: scaleY(1);
  }

  50% {
    -webkit-transform: scaleY(1.8);
    -ms-transform: scaleY(1.8);
    -o-transform: scaleY(1.8);
    transform: scaleY(1.8);
  }
}

@-webkit-keyframes spinner-grow {
  0% {
    -webkit-transform: scale(0);
    transform: scale(0);
  }
  50% {
    opacity: 1;
  }
}

@keyframes spinner-grow {
  0% {
    -webkit-transform: scale(0);
    transform: scale(0);
  }
  50% {
    opacity: 1;
  }
}

.spinner-grow {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  vertical-align: text-bottom;
  background-color: #2980b9;
  border-radius: 50%;
  opacity: 0;
  -webkit-animation: spinner-grow 0.75s linear infinite;
  animation: spinner-grow 0.75s linear infinite;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sr-only-focusable:active,
.sr-only-focusable:focus {
  position: static;
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  white-space: normal;
}