AdminLTE/plugins/pace-progress/themes/black/pace-theme-center-radar.css

/* This is a compiled file, to make changes persist, consider editing under the templates directory */
.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;

  z-index: 2000;
  position: fixed;
  height: 90px;
  width: 90px;
  margin: auto;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.pace.pace-inactive .pace-activity {
  display: none;
}

.pace .pace-activity {
  position: fixed;
  z-index: 2000;
  display: block;
  position: absolute;
  left: -30px;
  top: -30px;
  height: 90px;
  width: 90px;
  display: block;
  border-width: 30px;
  border-style: double;
  border-color: #000000 transparent transparent;
  border-radius: 50%;

  -webkit-box-sizing: content-box;
  -moz-box-sizing: content-box;
  box-sizing: content-box;

  -webkit-animation: spin 1s linear infinite;
  -moz-animation: spin 1s linear infinite;
  -o-animation: spin 1s linear infinite;
  animation: spin 1s linear infinite;
}

.pace .pace-activity:before {
  content: ' ';
  position: absolute;
  top: 10px;
  left: 10px;
  height: 50px;
  width: 50px;
  display: block;
  border-width: 10px;
  border-style: solid;
  border-color: #000000 transparent transparent;
  border-radius: 50%;

  -webkit-box-sizing: content-box;
  -moz-box-sizing: content-box;
  box-sizing: content-box;
}

@-webkit-keyframes spin {
  100% { -webkit-transform: rotate(359deg); }
}

@-moz-keyframes spin {
  100% { -moz-transform: rotate(359deg); }
}

@-o-keyframes spin {
  100% { -moz-transform: rotate(359deg); }
}

@keyframes spin {
  100% {  transform: rotate(359deg); }
}