styles.css

/*

This CSS file will be included with your plugin, and
available in the app when your plugin is enabled.

If your plugin does not need CSS, delete this file.

*/
@keyframes spinner-line-fade-more {
    0%, 100% {
      opacity: 0; /* minimum opacity */
    }
    1% {
      opacity: 1;
    }
  }
  
  @keyframes spinner-line-fade-quick {
    0%, 39%, 100% {
      opacity: 0.25; /* minimum opacity */
    }
    40% {
      opacity: 1;
    }
  }
  
  @keyframes spinner-line-fade-default {
    0%, 100% {
      opacity: 0.22; /* minimum opacity */
    }
    1% {
      opacity: 1;
    }
  }
  
  @keyframes spinner-line-shrink {
    0%, 25%, 100% {
      /* minimum scale and opacity */
      transform: scale(0.5);
      opacity: 0.25;
    }
    26% {
      transform: scale(1);
      opacity: 1;
    }
  }