Filled leftover placeholder

diff --git a/docs/layout/overview.md b/docs/layout/overview.md
index 0f2a09bf0af68c7b947fd498855949e9f5c81759..4fa972d28087ceaf482b5b40ff12e9e3b7b7b8e6 100644 (file)
--- a/docs/layout/overview.md
+++ b/docs/layout/overview.md
@@ -51,7 +51,7 @@ Since Bootstrap is developed to be mobile first, we use a handful of [media quer
 Bootstrap primarily uses the following media query ranges—or breakpoints—in our source Sass files for our layout, grid system, and components.
 
 {% highlight scss %}
-// Extra small devices (portrait phones, less than ???px)
+// Extra small devices (portrait phones, less than 34em)
 // No media query since this is the default in Bootstrap
 
 // Small devices (landscape phones, 34em and up)