another quick pass at ranking all zindexes and listing them in variables for...

another quick pass at ranking all zindexes and listing them in variables for quick overview and editing later

bootstrap.css

@@ -6,7 +6,7 @@
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Designed and built with all the love in the world @twitter by @mdo and @fat.
- * Date: Sat Jan  7 04:00:34 PST 2012
+ * Date: Sat Jan  7 04:06:22 PST 2012
  */
 html, body {
   margin: 0;
@@ -1714,7 +1714,7 @@ i {
   top: 0;
   right: 0;
   left: 0;
-  z-index: 999;
+  z-index: 1010;
 }
 .nav {
   position: relative;
@@ -2219,7 +2219,7 @@ i {
   right: 0;
   bottom: 0;
   left: 0;
-  z-index: 10000;
+  z-index: 1020;
   background-color: #000000;
 }
 .modal-backdrop.fade {
@@ -2304,7 +2304,7 @@ i {
 }
 .twipsy {
   position: absolute;
-  z-index: 1005;
+  z-index: 1000;
   display: block;
   visibility: visible;
   padding: 5px;
@@ -2382,7 +2382,7 @@ i {
   position: absolute;
   top: 0;
   left: 0;
-  z-index: 1005;
+  z-index: 1020;
   display: none;
   padding: 5px;
 }

bootstrap.min.css

@@ -306,7 +306,7 @@ i{background-image:url(docs/assets/img/glyphicons-halflings-sprite.png);backgrou
 .navbar-search .search-query:focus,.navbar-search .search-query.focused{padding:5px 10px;color:#333333;text-shadow:0 1px 0 #ffffff;background-color:#ffffff;border:0;-webkit-box-shadow:0 0 3px rgba(0, 0, 0, 0.15);-moz-box-shadow:0 0 3px rgba(0, 0, 0, 0.15);box-shadow:0 0 3px rgba(0, 0, 0, 0.15);outline:0;}
 .navbar-static{margin-bottom:18px;}
 .navbar-static .navbar-inner{padding-left:20px;padding-right:20px;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;}
-.navbar-fixed{position:fixed;top:0;right:0;left:0;z-index:999;}
+.navbar-fixed{position:fixed;top:0;right:0;left:0;z-index:1010;}
 .nav{position:relative;left:0;display:block;float:left;margin:0 10px 0 0;}.nav>li{display:block;float:left;}
 .nav a{display:block;float:none;padding:10px 10px 11px;line-height:19px;color:#999999;text-decoration:none;text-shadow:0 -1px 0 rgba(0, 0, 0, 0.25);}.nav a:hover{color:#ffffff;text-decoration:none;}
 .nav .active>a{background-color:#222;background-color:rgba(0, 0, 0, 0.5);}
@@ -374,7 +374,7 @@ i{background-image:url(docs/assets/img/glyphicons-halflings-sprite.png);backgrou
 .pagination .disabled a,.pagination .disabled a:hover{color:#999999;background-color:transparent;cursor:default;}
 .pagination .next a{border:0;}
 .pagination.centered{text-align:center;}
-.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10000;background-color:#000000;}.modal-backdrop.fade{opacity:0;}
+.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1020;background-color:#000000;}.modal-backdrop.fade{opacity:0;}
 .modal-backdrop,.modal-backdrop.fade.in{filter:alpha(opacity=80);-moz-opacity:0.8;opacity:0.8;}
 .modal{position:fixed;top:50%;left:50%;z-index:11000;max-height:500px;overflow:auto;width:560px;margin:-250px 0 0 -250px;background-color:#ffffff;border:1px solid #999;border:1px solid rgba(0, 0, 0, 0.3);*border:1px solid #999;-webkit-border-radius:6px;-moz-border-radius:6px;border-radius:6px;-webkit-box-shadow:0 3px 7px rgba(0, 0, 0, 0.3);-moz-box-shadow:0 3px 7px rgba(0, 0, 0, 0.3);box-shadow:0 3px 7px rgba(0, 0, 0, 0.3);-webkit-background-clip:padding-box;-moz-background-clip:padding-box;background-clip:padding-box;}.modal .close{margin-top:7px;}
 .modal.fade{-webkit-transition:opacity .3s linear, top .3s ease-out;-moz-transition:opacity .3s linear, top .3s ease-out;-ms-transition:opacity .3s linear, top .3s ease-out;-o-transition:opacity .3s linear, top .3s ease-out;transition:opacity .3s linear, top .3s ease-out;top:-25%;}
@@ -384,7 +384,7 @@ i{background-image:url(docs/assets/img/glyphicons-halflings-sprite.png);backgrou
 .modal-footer{padding:14px 15px 15px;margin-bottom:0;background-color:#f5f5f5;border-top:1px solid #ddd;-webkit-border-radius:0 0 6px 6px;-moz-border-radius:0 0 6px 6px;border-radius:0 0 6px 6px;-webkit-box-shadow:inset 0 1px 0 #ffffff;-moz-box-shadow:inset 0 1px 0 #ffffff;box-shadow:inset 0 1px 0 #ffffff;zoom:1;}.modal-footer:before,.modal-footer:after{display:table;*display:inline;content:"";zoom:1;}
 .modal-footer:after{clear:both;}
 .modal-footer .btn{float:right;margin-left:5px;}
-.twipsy{position:absolute;z-index:1005;display:block;visibility:visible;padding:5px;font-size:11px;filter:alpha(opacity=0);-moz-opacity:0;opacity:0;}.twipsy.in{filter:alpha(opacity=80);-moz-opacity:0.8;opacity:0.8;}
+.twipsy{position:absolute;z-index:1000;display:block;visibility:visible;padding:5px;font-size:11px;filter:alpha(opacity=0);-moz-opacity:0;opacity:0;}.twipsy.in{filter:alpha(opacity=80);-moz-opacity:0.8;opacity:0.8;}
 .twipsy.top{margin-top:-2px;}
 .twipsy.right{margin-left:2px;}
 .twipsy.bottom{margin-top:2px;}
@@ -395,7 +395,7 @@ i{background-image:url(docs/assets/img/glyphicons-halflings-sprite.png);backgrou
 .twipsy.right .twipsy-arrow{top:50%;left:0;margin-top:-5px;border-top:5px solid transparent;border-bottom:5px solid transparent;border-right:5px solid #000000;}
 .twipsy-inner{max-width:200px;padding:3px 8px;color:white;text-align:center;text-decoration:none;background-color:#000000;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;}
 .twipsy-arrow{position:absolute;width:0;height:0;}
-.popover{position:absolute;top:0;left:0;z-index:1005;display:none;padding:5px;}.popover.top{margin-top:-5px;}
+.popover{position:absolute;top:0;left:0;z-index:1020;display:none;padding:5px;}.popover.top{margin-top:-5px;}
 .popover.right{margin-left:5px;}
 .popover.bottom{margin-top:5px;}
 .popover.left{margin-left:-5px;}

lib/dropdowns.less

@@ -27,7 +27,7 @@
 .dropdown-menu {
   position: absolute;
   top: 40px;
-  z-index: 1000;
+  z-index: @zindexDropdowns;
   float: left;
   display: none; // none by default, but block on "open" of the menu
   min-width: 160px;

lib/modals.less

@@ -7,7 +7,7 @@
   right: 0;
   bottom: 0;
   left: 0;
-  z-index: 10000;
+  z-index: @zindexPopover;
   background-color: @black;
   // Fade for backdrop
   &.fade { opacity: 0; }

lib/navbar.less

@@ -125,7 +125,7 @@
   top: 0;
   right: 0;
   left: 0;
-  z-index: 999;
+  z-index: @zindexFixedNavbar;
 }
 
 

lib/popovers.less

@@ -5,7 +5,7 @@
   position: absolute;
   top: 0;
   left: 0;
-  z-index: 1005;
+  z-index: @zindexPopover;
   display: none;
   padding: 5px;
   &.top    { margin-top:  -5px; }

lib/twipsy.less

@@ -3,7 +3,7 @@
 
 .twipsy {
   position: absolute;
-  z-index: 1005;
+  z-index: @zindexTwipsy;
   display: block;
   visibility: visible;
   padding: 5px;

lib/variables.less

@@ -44,7 +44,16 @@
 @siteWidth:         (@gridColumns * @gridColumnWidth) + (@gridGutterWidth * (@gridColumns - 1));
 
 // Fluid width sidebar
-@fluidSidebarWidth:	220px;
+@fluidSidebarWidth: 220px;
+
+
+// Z-INDEX
+// -------
+@zindexDropdowns:     1000;
+@zindexTwipsy:        1000;
+@zindexFixedNavbar:   1010;
+@zindexPopover:       1020;
+@zindexModal:         1030;
 
 
 // THEME VARIABLES