resources/web/style/sidebar.pcss

#guide .sidebar {
  border: 1px solid #00a9e5;
  border-radius: 10px;
  background: #fbfbfb;
  padding: 15px 20px 0;
  margin: 10px 15px 20px;

  .title {
    margin: 0;
    border-bottom: 1px solid #ddd;
    margin-bottom: 10px;
  }
}