edit comments a bit

scss/_reboot.scss

+// Reboot
 //
-// Scaffolding
-// --------------------------------------------------
+// Global resets to common HTML elements and more for easier usage by Bootstrap.
+// Builds on the resets of Normalize.css.
 
 
 // Reset the box-sizing
 //
-// Heads up! This reset may cause conflicts with some third-party widgets.
-// For recommendations on resolving such conflicts, see
-// http://getbootstrap.com/getting-started/#third-box-sizing
+// Heads up! This reset may cause conflicts with some third-party widgets. For
+// recommendations on resolving such conflicts, see
+// http://getbootstrap.com/getting-started/#third-box-sizing.
+//
 // Credit: Jon Neal & CSS-Tricks
 // http://css-tricks.com/inheriting-box-sizing-probably-slightly-better-best-practice/
 
@@ -24,15 +26,16 @@ html {
 
 // Make viewport responsive
 //
-// @viewport is supposed to eventually replace <meta name="viewport">. It's manually prefixed for forward-compatibility.
-//
-// @viewport is also needed because IE 10+ doesn't honor <meta name="viewport"> in some cases.
-// (See http://timkadlec.com/2012/10/ie10-snap-mode-and-responsive-design/)
+// @viewport is needed because IE 10+ doesn't honor <meta name="viewport"> in
+// some cases. See http://timkadlec.com/2012/10/ie10-snap-mode-and-responsive-design/.
+// Eventually @viewport will replace <meta name="viewport">. It's been manually
+// prefixed for forward-compatibility.
 //
 // However, `device-width` is broken on IE 10 on Windows (Phone) 8,
-// (see http://timkadlec.com/2013/01/windows-phone-8-and-device-width/
-// and https://github.com/twbs/bootstrap/issues/10497)
-// and the fix for that involves a snippet of JavaScript to sniff the user agent and apply some conditional CSS.
+// (see http://timkadlec.com/2013/01/windows-phone-8-and-device-width/ and https://github.com/twbs/bootstrap/issues/10497)
+// and the fix for that involves a snippet of JavaScript to sniff the user agent
+// and apply some conditional CSS.
+//
 // See http://getbootstrap.com/getting-started/#support-ie10-width for the relevant hack.
 
 @-moz-viewport      { width: device-width; }