diff --git a/modules/primer-marketing-utilities/docs/borders.md b/modules/primer-marketing-utilities/docs/borders.md
index 33992a13..8fe5dfac 100644
--- a/modules/primer-marketing-utilities/docs/borders.md
+++ b/modules/primer-marketing-utilities/docs/borders.md
@@ -7,16 +7,6 @@ The following border utilities are meant to used in addition to those within pri
{:toc}
-## Responsive borders
-
-Top, right, bottom, and left border utilities are can be used responsively to add or remove borders to an element at different screensizes.
-
-```html
-
- .border-top-0
-
-```
-
## Border Colors
### White border with alpha transparency
diff --git a/modules/primer-utilities/docs/borders.md b/modules/primer-utilities/docs/borders.md
index 0c048866..52a62ed2 100644
--- a/modules/primer-utilities/docs/borders.md
+++ b/modules/primer-utilities/docs/borders.md
@@ -86,6 +86,7 @@ Override default border colors with blue, green, red, purple, yellow, and gray b
```
### Borders with alpha transparency
+
Use `border-black-fade` to add an rgba black border with an alpha transparency of `0.15`. This is useful when you want a border that tints the background color. The shade of black we use matches the hue of the GitHub dark header and our gray color palette: `rgba(27,31,35, 0.15)`.
```html
@@ -142,3 +143,13 @@ You can also add rounded corners to each edge (top, right, bottom, left) with th
.rounded-left
```
+
+## Responsive borders
+
+Top, right, bottom, and left border utilities are can be used responsively to add or remove borders to an element at different screensizes.
+
+```html
+
+ .border-top-0
+
+```