This rule checks that the specified child elements are present inside the specified parent elements.

Noncompliant Code Example

Given a parent/child combination of <head>/<title>:

<html>
  <head>
  </head>  <!-- Noncompliant; no title element -->
  <body>
    ...

Compliant Solution

<html>
  <head>
    <title>My Page</title>
  </head>
  <body>
    ...