Update CS0060 documentation

docs/csharp/misc/cs0060.md

@@ -2,36 +2,40 @@
 description: "Compiler Error CS0060"
 title: "Compiler Error CS0060"
 ms.date: 07/20/2015
-f1_keywords: 
+f1_keywords:
   - "CS0060"
-helpviewer_keywords: 
+helpviewer_keywords:
   - "CS0060"
 ms.assetid: ae6d4fb7-5ff9-4883-82c3-f55b190f439a
 ---
 # Compiler Error CS0060
 
-Inconsistent accessibility: base class 'class1' is less accessible than class 'class2'  
-
- Class accessibility should be consistent between the base class and inherited class.  
-
- The following sample generates CS0060:  
-
-```csharp  
-// CS0060.cs  
-class MyClass  
-// try the following line instead  
-// public class MyClass  
-{  
-}  
-
-public class MyClass2 : MyClass   // CS0060  
-{  
-   public static void Main()  
-   {  
-   }  
-}  
-```  
-
+Inconsistent accessibility: base class 'Class1' is less accessible than class 'Class2'
+
+In C#, a derived class cannot have broader accessibility than its base class. If the base class is less accessible, consumers of the derived class might unintentionally gain access to a class they shouldn't see.
+
+Subclasses can never be more accessible than their base classes. That would allow consumers of the subclass broader access to the base type than was intended.
+
+The following sample produces CS0060 because `Class1` is `internal` and `Class2` is `public`.
+
+```csharp
+internal class Class1
+{
+}
+
+public class Class2 : Class1 // 🛑 CS0060: Class1 is less accessible
+{
+}
+```
+
+You can resolve CS0060 in one of two ways:
+
+- Make the base class more accessible: Change `Class1` to be `public`.
+- Restrict the derived class's accessibility: Change `Class2` to be `internal`.
+
+> [!TIP]
+> Base classes can be _more_ accessible than their subclasses, but never _less_ accessible.
+
 ## See also
 
 - [Access Modifiers](../programming-guide/classes-and-structs/access-modifiers.md)