diff --git a/src/librustdoc/html/render/print_item.rs b/src/librustdoc/html/render/print_item.rs
index f1d79ab097b9f..c03617a14b911 100644
--- a/src/librustdoc/html/render/print_item.rs
+++ b/src/librustdoc/html/render/print_item.rs
@@ -140,7 +140,7 @@ fn toggle_open(w: &mut Buffer, text: &str) {
     write!(
         w,
         "<details class=\"rustdoc-toggle type-contents-toggle\">\
-            <summary class=\"hideme\">\
+            <summary class=\"hide-me\">\
                 <span>Show {}</span>\
             </summary>",
         text
diff --git a/src/librustdoc/html/static/rustdoc.css b/src/librustdoc/html/static/rustdoc.css
index a024fa49b0e8b..9d1b34e076ed3 100644
--- a/src/librustdoc/html/static/rustdoc.css
+++ b/src/librustdoc/html/static/rustdoc.css
@@ -1355,6 +1355,64 @@ h4 > .notable-traits {
 	border-top: 1px solid;
 }
 
+/* The hide-me class is used on summary tags that contain a span with
+	placeholder text shown only when the toggle is closed. For instance,
+	"Expand description" or "Show methods". */
+details.rustdoc-toggle > summary.hide-me {
+	cursor: pointer;
+}
+
+details.rustdoc-toggle > summary::marker {
+	display: none;
+}
+
+details.rustdoc-toggle > summary::-webkit-details-marker {
+	display: none;
+}
+
+details.rustdoc-toggle > summary.hide-me > span {
+	margin-left: 9px;
+}
+
+details.rustdoc-toggle > summary::before {
+	content: "[+]";
+	font-weight: 300;
+	font-size: 0.8em;
+	letter-spacing: 1px;
+	cursor: pointer;
+}
+
+details.rustdoc-toggle > summary.hide-me::before {
+	position: relative;
+}
+
+details.rustdoc-toggle > summary:not(.hide-me)::before {
+	position: absolute;
+	left: -23px;
+}
+
+/* When a "hide-me" summary is open and the "Expand description" or "Show
+	methods" text is hidden, we want the [-] toggle that remains to not
+	affect the layout of the items to its right. To do that, we use
+	absolute positioning. Note that we also set position: relative
+	on the parent <details> to make this work properly. */
+details.rustdoc-toggle[open] > summary.hide-me {
+	position: absolute;
+}
+
+details.rustdoc-toggle[open] {
+	position: relative;
+}
+
+details.rustdoc-toggle[open] > summary.hide-me > span {
+	display: none;
+}
+
+details.rustdoc-toggle[open] > summary::before {
+	content: "[−]";
+	display: inline;
+}
+
 /* Media Queries */
 
 @media (min-width: 701px) {
@@ -1573,7 +1631,7 @@ h4 > .notable-traits {
 		left: -10px;
 	}
 
-	.item-list > details.rustdoc-toggle > summary:not(.hideme)::before {
+	details.rustdoc-toggle > summary:not(.hide-me)::before {
 		left: -10px;
 	}
 
@@ -1770,57 +1828,3 @@ div.name.expand::before {
 	left: -15px;
 	top: 2px;
 }
-
-/* The hideme class is used on summary tags that contain a span with
-	placeholder text shown only when the toggle is closed. For instance,
-	"Expand description" or "Show methods". */
-details.rustdoc-toggle > summary.hideme {
-	cursor: pointer;
-}
-
-details.rustdoc-toggle > summary::-webkit-details-marker {
-	display: none;
-}
-
-details.rustdoc-toggle > summary.hideme > span {
-	margin-left: 9px;
-}
-
-details.rustdoc-toggle > summary::before {
-	content: "[+]";
-	font-weight: 300;
-	font-size: 0.8em;
-	letter-spacing: 1px;
-	cursor: pointer;
-}
-
-details.rustdoc-toggle > summary.hideme::before {
-	position: relative;
-}
-
-details.rustdoc-toggle > summary:not(.hideme)::before {
-	position: absolute;
-	left: -23px;
-}
-
-/* When a "hideme" summary is open and the "Expand description" or "Show
-	methods" text is hidden, we want the [-] toggle that remains to not
-	affect the layout of the items to its right. To do that, we use
-	absolute positioning. Note that we also set position: relative
-	on the parent <details> to make this work properly. */
-details.rustdoc-toggle[open] > summary.hideme {
-	position: absolute;
-}
-
-details.rustdoc-toggle[open] {
-	position: relative;
-}
-
-details.rustdoc-toggle[open] > summary.hideme > span {
-	display: none;
-}
-
-details.rustdoc-toggle[open] > summary::before {
-	content: "[−]";
-	display: inline;
-}
diff --git a/src/librustdoc/html/static/themes/ayu.css b/src/librustdoc/html/static/themes/ayu.css
index 72396ec6b76bd..850771bf088b8 100644
--- a/src/librustdoc/html/static/themes/ayu.css
+++ b/src/librustdoc/html/static/themes/ayu.css
@@ -225,7 +225,7 @@ a {
 }
 
 .collapse-toggle,
-details.rustdoc-toggle > summary.hideme > span,
+details.rustdoc-toggle > summary.hide-me > span,
 details.rustdoc-toggle > summary::before {
 	color: #999;
 }
diff --git a/src/librustdoc/html/static/themes/dark.css b/src/librustdoc/html/static/themes/dark.css
index b2003b5274120..0540680c07fcc 100644
--- a/src/librustdoc/html/static/themes/dark.css
+++ b/src/librustdoc/html/static/themes/dark.css
@@ -187,7 +187,7 @@ a.test-arrow {
 }
 
 .collapse-toggle,
-details.rustdoc-toggle > summary.hideme > span,
+details.rustdoc-toggle > summary.hide-me > span,
 details.rustdoc-toggle > summary::before {
 	color: #999;
 }
diff --git a/src/librustdoc/html/static/themes/light.css b/src/librustdoc/html/static/themes/light.css
index 04187773b64db..d79bfb1451e60 100644
--- a/src/librustdoc/html/static/themes/light.css
+++ b/src/librustdoc/html/static/themes/light.css
@@ -185,7 +185,7 @@ a.test-arrow {
 }
 
 .collapse-toggle,
-details.rustdoc-toggle > summary.hideme > span,
+details.rustdoc-toggle > summary.hide-me > span,
 details.rustdoc-toggle > summary::before {
 	color: #999;
 }