897 .reveal.page .slides {  class
902 .reveal.page .slides section {  class
908 	.reveal.page .slides section.past {  class
911 	.reveal.page .slides section:not(.stack):before {  class
922 	.reveal.page .slides section:not(.stack):after {  class
939 .reveal.page .slides>section.stack {  class
944 .reveal.page .slides>section.past {  class
949 .reveal.page .slides>section.future {  class
954 .reveal.page .slides>section>section.past {  class
959 .reveal.page .slides>section>section.future {  class
1529 	.reveal > .overlay.overlay-help .viewport .viewport-inner .title {  class