visual experiences, with potentially devastating effects on their corresponding non-visual experiences.
        </p>
        <p>Before using ARIA or any of the guidance in this document, please take time to understand the following two essential principles.</p>
        <h3>Principle 1: A role is a promise</h3>
        <p>This code:</p>
        <pre><code>&lt;div role=&quot;button&quot;&gt;Place Order&lt;/div&gt;</code></pre>
        <p>
          Is a promise that the author of that <code>&lt;div&gt;</code>