The vision of CSS included the notion of alternate stylesheets and some capability in browsers for the user to pick the stylesheet; as well as the notion of use

The vision of CSS included the notion of alternate stylesheets and some capability in browsers for the user to pick the stylesheet; as well as the notion of user styles which sometimes supplement, sometimes override the page author's style; all governed by the famous 'cascade' i.e. the resolution rules that determine which styles get applied [1][2]. Firefox (perhaps under its previous name, I can't remember) initially provided a statusbar-based UI to quickly switch styles, but it was removed [3] sometime in 2004. After that, browsers, if at all, only provided a bare minimum UI to switch stylesheets, usually though the application menu. Outside of hobbyist circles, page authors stopped providing alternate stylesheets. User-applied styles lived on in various ways: through addons, through alternate user-agents, but tends to be relegated to specific audiences or passionate fans of the capability; not a mainstream phenomenon. EDIT: To experience this blast from the past, Mozilla has a sample page [4]. If the directions seem nonsensical, it's because the default browser UI now hides the menu bar [5], demonstrating just how obscure this option has become. [1] https://www.w3.org/TR/CSS1/#the-cascade https://www.w3.org/TR/CSS1/#the-cascade [2] https://www.w3.org/TR/CSS2/cascade.html#cascade https://www.w3.org/TR/CSS2/cascade.html#cascade [3] http://forums.mozillazine.org/viewtopic.php?f=8&t=118119 http://forums.mozillazine.org/viewtopic.php?f=8&t=118119 [4] https://developer.mozilla.org/samples/cssref/altstyles/index.html https://developer.mozilla.org/samples/cssref/altstyles/index... [5] https://support.mozilla.org/en-US/kb/what-happened-to-the-file-edit-and-view-menus#w_show-the-menu-bar-again https://support.mozilla.org/en-US/kb/what-happened-to-the-fi...