discourse/app/assets/stylesheets/common/base/topic-summary.scss

.topic-map {
  .toggle-summary {
    .summarization-buttons {
      display: flex;
    }

    .placeholder-summary {
      padding-top: 0.5em;
    }

    .placeholder-summary-text {
      display: inline-block;
      height: 1em;
      margin-top: 0.6em;
      width: 100%;
    }

    .rotate-center {
      -webkit-animation: rotate-center 3s cubic-bezier(0.68, -0.55, 0.265, 1.55)
        0.5s infinite both;
      animation: rotate-center 3s cubic-bezier(0.68, -0.55, 0.265, 1.55) 0.5s
        infinite both;
    }

    .placeholder-generating-summary-text {
      display: inline-block;
      margin-left: 3px;
    }

    .summarized-on {
      text-align: right;

      .model-used {
        margin-left: 3px;
      }
    }
  }
}