diff --git a/CPP17.md b/CPP17.md
index fc32ec2..e2d9e60 100644
--- a/CPP17.md
+++ b/CPP17.md
@@ -170,7 +170,10 @@ namespace A {
     }
   }
 }
-// vs.
+```
+
+The code above can be written like this:
+```c++
 namespace A::B::C {
   int i;
 }
diff --git a/README.md b/README.md
index 89a356b..8f7e4f5 100644
--- a/README.md
+++ b/README.md
@@ -748,7 +748,10 @@ namespace A {
     }
   }
 }
-// vs.
+```
+
+The code above can be written like this:
+```c++
 namespace A::B::C {
   int i;
 }