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

#topic-title {

  .title-wrapper {float: left; width: 90%;}

  a.badge-category {
    margin-top: 5px;
    }

  h1 {
    a.edit-topic {
      font-size: 17px;
      display: inline-block;
      vertical-align: top;
      position: relative;
      }
  }

}