diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs
index d10b612a73799..dcd2805aceb97 100644
--- a/src/librustdoc/html/render/mod.rs
+++ b/src/librustdoc/html/render/mod.rs
@@ -989,7 +989,6 @@ fn render_assoc_item(
 
 const ALLOWED_ATTRIBUTES: &[Symbol] = &[
     sym::export_name,
-    sym::lang,
     sym::link_section,
     sym::must_use,
     sym::no_mangle,
diff --git a/src/librustdoc/html/static/rustdoc.css b/src/librustdoc/html/static/rustdoc.css
index 427564cd7794a..570dabbd36105 100644
--- a/src/librustdoc/html/static/rustdoc.css
+++ b/src/librustdoc/html/static/rustdoc.css
@@ -967,6 +967,10 @@ a.test-arrow:hover{
 	color: inherit;
 }
 
+.code-attribute {
+	font-weight: 300;
+}
+
 .collapse-toggle {
 	font-weight: 300;
 	position: absolute;
diff --git a/src/librustdoc/html/static/themes/ayu.css b/src/librustdoc/html/static/themes/ayu.css
index 5f6f3d66e5757..b0a8c41fb08d5 100644
--- a/src/librustdoc/html/static/themes/ayu.css
+++ b/src/librustdoc/html/static/themes/ayu.css
@@ -329,7 +329,8 @@ a.test-arrow:hover {
 	color: #c5c5c5;
 }
 
-.toggle-label {
+.toggle-label,
+.code-attribute {
 	color: #999;
 }
 
diff --git a/src/librustdoc/html/static/themes/dark.css b/src/librustdoc/html/static/themes/dark.css
index 2ce6cf4cc45ca..b702dc4a937f8 100644
--- a/src/librustdoc/html/static/themes/dark.css
+++ b/src/librustdoc/html/static/themes/dark.css
@@ -274,7 +274,8 @@ a.test-arrow:hover{
 	background-color: #4e8bca;
 }
 
-.toggle-label {
+.toggle-label,
+.code-attribute {
 	color: #999;
 }
 
diff --git a/src/librustdoc/html/static/themes/light.css b/src/librustdoc/html/static/themes/light.css
index 31b3562cfcb06..566ed62a62861 100644
--- a/src/librustdoc/html/static/themes/light.css
+++ b/src/librustdoc/html/static/themes/light.css
@@ -267,7 +267,8 @@ a.test-arrow:hover{
 	background-color: #4e8bca;
 }
 
-.toggle-label {
+.toggle-label,
+.code-attribute {
 	color: #999;
 }