discourse/app/assets/stylesheets/desktop/topic.scss

.post-actions {
  @include unselectable;
  clear: both;
  text-align: right;
  margin-bottom: 10px;
  .post-action {
    display: inline-block;
    margin-left: 10px;
    margin-top: 10px;
  }
}

.post-menu-area {
  margin: 20px 0;
}

#topic-title {
  z-index: z("base");
  margin-bottom: 1em;

  h1 {
    font-size: var(--font-up-4);
    line-height: var(--line-height-medium);
    overflow-wrap: break-word;
    width: 100%;
    a {
      color: var(--primary);
    }
  }

  .remove-featured-link {
    float: right;
    text-transform: lowercase;
    color: var(--primary-med-or-secondary-med);
    font-size: 0.857rem;
  }
}

.topic-error {
  padding: 18px;
  width: 60%;
  margin-left: auto;
  margin-right: auto;
  font-size: var(--font-up-4);
  text-align: center;
  line-height: var(--line-height-medium);

  .topic-retry {
    display: block;
    margin-top: 28px;
    margin-left: auto;
    margin-right: auto;
  }
}

#topic-filter {
  background-color: var(--highlight-bg);
  padding: 8px;
  bottom: 0;
  position: fixed;
  width: 100%;
  font-size: var(--font-0);
  z-index: z("dropdown");
}

.onscreen-post .row {
  display: flex; // children should never wrap
}