erText = `$${this.score}`;
})
            </code></pre>
          </section>
          <section>
            <iframe width="100%" height="600" data-src="/ch11.html">
            </iframe>
          </section>
          

          <section>
            <h1>... Getting carried away, again!</h1>
          </section>


          <!-- Tire Marks -->
          <section>
            <h1>Tire Marks</h1>
          </section>
          <section>
            <h2>Using a canvas</h2>
            <h3>engine.js</h3>
    