/usr/share/javascript/bootstrap-tour/bootstrap-tour.min.css is in libjs-bootstrap-tour 0.12.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | .tour-backdrop{position:absolute;z-index:1100;background-color:#000;opacity:.8;filter:alpha(opacity=80)}.popover[class*=tour-]{z-index:1102}.popover[class*=tour-] .popover-navigation{padding:9px 14px;overflow:hidden}.popover[class*=tour-] .popover-navigation [data-role=end]{float:right}.popover[class*=tour-] .popover-navigation [data-role=prev],.popover[class*=tour-] .popover-navigation [data-role=next],.popover[class*=tour-] .popover-navigation [data-role=end]{cursor:pointer}.popover[class*=tour-] .popover-navigation [data-role=prev].disabled,.popover[class*=tour-] .popover-navigation [data-role=next].disabled,.popover[class*=tour-] .popover-navigation [data-role=end].disabled{cursor:default}.popover[class*=tour-].orphan{position:fixed;margin-top:0}.popover[class*=tour-].orphan .arrow{display:none}
|