diff --git a/docs/4.0/layout/grid.md b/docs/4.0/layout/grid.md
index 4389c36cea..05c01d885f 100644
--- a/docs/4.0/layout/grid.md
+++ b/docs/4.0/layout/grid.md
@@ -34,7 +34,7 @@ The above example creates three equal-width columns on small, medium, large, and
 
 Breaking it down, here's how it works:
 
-- Containers provide a means to center and horizontally pad your site's contents. Use `.container` for specific pixel width or `.container-fluid` for `width: 100%`.
+- Containers provide a means to center and horizontally pad your site's contents. Use `.container` for a responsive pixel width or `.container-fluid` for `width: 100%` across all viewport and device sizes.
 - Rows are wrappers for columns. Each column has horizontal `padding` (called a gutter) for controlling the space between them. This `padding` is then counteracted on the rows with negative margins; this way, all your content is aligned properly down the left side.
 - Content should be placed within columns, and only columns may be immediate children of rows.
 - Thanks to flexbox, grid columns without a set width will automatically layout with equal widths. For example, four instances of `.col-sm` will each automatically be 25% wide for small breakpoints.