<div id="trafficTop"></div>
<div id="container">
  <div class="redLight"></div>
  <div class="orangeLight"></div>
  <div class="greenLight"></div>
</div>
<span class="msg"><h2>Press "Green light" to go!</h2></span>
<div id="retryBtn"><button>Retry</button>
</div>
<div id="yellowCar">
  <div class="top"></div>
  <div class="bottom"></div>
  <div class="fwheel"></div>
  <div class="bwheel"></div>
</div>
<div id="road"></div>