FlaskWebSample/static/scss/vendors/pace-progress/pace.scss

// Import variables
@import "../variables";

#loading-bar,
#loading-bar-spinner {
  -webkit-pointer-events: none;
  pointer-events: none;
  -moz-transition: 350ms linear all;
  -o-transition: 350ms linear all;
  -webkit-transition: 350ms linear all;
  transition: 350ms linear all;
}

#loading-bar.ng-enter,
#loading-bar.ng-leave.ng-leave-active,
#loading-bar-spinner.ng-enter,
#loading-bar-spinner.ng-leave.ng-leave-active {
  opacity: 0;
}

#loading-bar.ng-enter.ng-enter-active,
#loading-bar.ng-leave,
#loading-bar-spinner.ng-enter.ng-enter-active,
#loading-bar-spinner.ng-leave {
  opacity: 1;
}

#loading-bar .bar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20002;
  width: 100%;
  height: 2px;
  background: theme-color("primary");
  border-top-right-radius: 1px;
  border-bottom-right-radius: 1px;
  -moz-transition: width 350ms;
  -o-transition: width 350ms;
  -webkit-transition: width 350ms;
  transition: width 350ms;
}

// Fancy blur effect
#loading-bar .peg {
  position: absolute;
  top: 0;
  right: 0;
  width: 70px;
  height: 2px;
  -moz-border-radius: 100%;
  -webkit-border-radius: 100%;
  border-radius: 100%;
  -moz-box-shadow: #29d 1px 0 6px 1px;
  -ms-box-shadow: #29d 1px 0 6px 1px;
  -webkit-box-shadow: #29d 1px 0 6px 1px;
  box-shadow: #29d 1px 0 6px 1px;
  opacity: .45;
}

#loading-bar-spinner {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 10002;
  display: block;
}

#loading-bar-spinner .spinner-icon {
  width: 14px;
  height: 14px;

  border: solid 2px transparent;
  border-top-color: #29d;
  border-left-color: #29d;
  border-radius: 50%;

  -moz-animation: loading-bar-spinner 400ms linear infinite;
  -ms-animation: loading-bar-spinner 400ms linear infinite;
  -o-animation: loading-bar-spinner 400ms linear infinite;
  -webkit-animation: loading-bar-spinner 400ms linear infinite;
  animation: loading-bar-spinner 400ms linear infinite;
}

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

//Ajax & Static Version
.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

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

.pace-inactive {
  display: none;
}

.pace .pace-progress {
  position: fixed;
  top: 0;
  right: 100%;
  z-index: 2000;
  width: 100%;
  height: 2px;
  background: theme-color("primary");
}