diff --git a/src/librustdoc/html/static/rustdoc.css b/src/librustdoc/html/static/rustdoc.css
index d3f8a7aa67dd7..35b2785fac004 100644
--- a/src/librustdoc/html/static/rustdoc.css
+++ b/src/librustdoc/html/static/rustdoc.css
@@ -138,7 +138,7 @@ h2, h3, h4 {
 	border-bottom: 1px solid;
 }
 .impl, .method,
-.type, .associatedconstant,
+.type:not(.container-rustdoc), .associatedconstant,
 .associatedtype {
 	flex-basis: 100%;
 	font-weight: 600;
diff --git a/src/test/rustdoc-gui/sidebar.goml b/src/test/rustdoc-gui/sidebar.goml
index 388ca120d770e..7703677154ef9 100644
--- a/src/test/rustdoc-gui/sidebar.goml
+++ b/src/test/rustdoc-gui/sidebar.goml
@@ -11,7 +11,8 @@ assert: (".sidebar-elems > .items > ul > li:nth-child(2)", "Structs")
 assert: (".sidebar-elems > .items > ul > li:nth-child(3)", "Enums")
 assert: (".sidebar-elems > .items > ul > li:nth-child(4)", "Traits")
 assert: (".sidebar-elems > .items > ul > li:nth-child(5)", "Functions")
-assert: (".sidebar-elems > .items > ul > li:nth-child(6)", "Keywords")
+assert: (".sidebar-elems > .items > ul > li:nth-child(6)", "Type Definitions")
+assert: (".sidebar-elems > .items > ul > li:nth-child(7)", "Keywords")
 assert: ("#structs + table td > a", "Foo")
 click: "#structs + table td > a"
 
diff --git a/src/test/rustdoc-gui/src/lib.rs b/src/test/rustdoc-gui/src/lib.rs
index 272b1d05452e3..5141b6d1920ea 100644
--- a/src/test/rustdoc-gui/src/lib.rs
+++ b/src/test/rustdoc-gui/src/lib.rs
@@ -96,3 +96,6 @@ pub enum AnEnum {
 
 #[doc(keyword = "CookieMonster")]
 pub mod keyword {}
+
+/// Just some type alias.
+pub type SomeType = u32;
diff --git a/src/test/rustdoc-gui/type-weight.rs b/src/test/rustdoc-gui/type-weight.rs
new file mode 100644
index 0000000000000..8b6518e7f317a
--- /dev/null
+++ b/src/test/rustdoc-gui/type-weight.rs
@@ -0,0 +1,2 @@
+goto: file://|DOC_PATH|/test_docs/type.SomeType.html
+assert-all: (".top-block .docblock p", {"font-weight": "400"})