12 .sidebar {  class
23 .sidebar h1 {  class
27 .sidebar h2 {  class
36 .sidebar .header {  class
44 .sidebar .header a {  class
49 .sidebar .nav-toggle {  class
53 .sidebar .expander {  class
63 .sidebar .expander .arrow {  class
74 .sidebar nav {  class
78 .sidebar nav ul {  class
172   .sidebar {  class
178   .sidebar .expander {  class
182   .sidebar nav {  class
187   .sidebar .nav-toggle:checked {  class