body > ui-view > .loading {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-color: #ecf0f5;

    > img {
        position: absolute;
        left: 50%;
        top: 50%;
        margin-left: -16px;
        margin-top: -16px;
    }
}

.loading-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: solid 2px transparent;
    border-top-color: #fff;
    border-left-color: #fff;
    border-radius: 10px;

    &.dark {
      border-top-color: #555;
      border-left-color: #555;
    }

    -webkit-animation: loading-spinner 600ms linear infinite;
    -moz-animation: loading-spinner 600ms linear infinite;
    -ms-animation: loading-spinner 600ms linear infinite;
    -o-animation: loading-spinner 600ms linear infinite;
    animation: loading-spinner 600ms linear infinite;
}

@-webkit-keyframes loading-spinner {
  0% { -webkit-transform: rotate(0deg); transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); }
}
@-moz-keyframes loading-spinner {
  0% { -moz-transform: rotate(0deg); transform: rotate(0deg); }
  100% { -moz-transform: rotate(360deg); transform: rotate(360deg); }
}
@-o-keyframes loading-spinner {
  0% { -o-transform: rotate(0deg); transform: rotate(0deg); }
  100% { -o-transform: rotate(360deg); transform: rotate(360deg); }
}
@-ms-keyframes loading-spinner {
  0% { -ms-transform: rotate(0deg); transform: rotate(0deg); }
  100% { -ms-transform: rotate(360deg); transform: rotate(360deg); }
}
@keyframes loading-spinner {
  0% { transform: rotate(0deg); transform: rotate(0deg); }
  100% { transform: rotate(360deg); transform: rotate(360deg); }
}