style.scss

a.tag-default.tag-pill:hover {
  background-color: #515a61;
}

.hide-text {
  text-indent: 100%;
  white-space: nowrap;
  overflow: hidden;
}

.loading-spinner {
  position: relative;
  width: 40px;
  height: 40px;
  margin: 90px auto;
  border-radius: 50%;
  border-top: 3px solid rgba(0, 0, 0, 0.1);
  border-right: 3px solid rgba(0, 0, 0, 0.1);
  border-bottom: 3px solid rgba(0, 0, 0, 0.1);
  border-left: 3px solid #818a91;
  transform: translateZ(0);
  animation: spin 0.5s infinite linear;
  /* TODO the spinner appears broken, might be because of this typo that existed in the original.
   * We noticed it when migrating to SASS which does a compile check ;-). */
  /*
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
  */
}

.error-message {
  display: flex;
  justify-content: center;
  .error-message-presenter {
    display: inline-block;
    margin: 20px auto;
    padding: 8px 15px;
    border-radius: 4px;
    color: #f02d2d;
    font-weight: 600;
    background: rgba(240, 45, 45, 0.1);
  }
}

/* https://github.com/gothinkster/angular-realworld-example-app/blob/9e8c49514ee874e5e0bbfe53ffdba7d2fd0af36f/src/app/shared/article-helpers/article-list.component.css#L1 */
.link {
  cursor: pointer;
}