modules/frontend/app/primitives/spinner-circle/index.scss

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

$color-inactive-primary: #C5C5C5;
$color-inactive-secondary: #FFFFFF;
$color-active-primary: #EE2B27;
$color-active-secondary: #FF8485;

.spinner-circle {
  display: inline-block;

  &:before {
    content: '';

    display: block;

    width: 20px;
    height: 20px;

    border-width: 1px;
    border-style: solid;
    border-radius: 50%;
    border-color: $color-inactive-primary;
    border-left-color: $color-active-primary;
  }
}

.spinner-circle:before {
  border-left-width: 2px;
  border-left-color: $color-active-primary;

  animation-name: spinner-circle--animation;
  animation-duration: 1s;
  animation-iteration-count: infinite;
  animation-timing-function: linear;
}

@keyframes spinner-circle--animation {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}