<html>
<head>
<title>Render Process Hang Test</title>
<style>
#loading {
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 3px solid rgba(0,0,0,.3);
  border-radius: 50%;
  border-top-color: #000;
  animation: spin 1s ease-in-out infinite;
  -webkit-animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { -webkit-transform: rotate(360deg); }
}
@-webkit-keyframes spin {
  to { -webkit-transform: rotate(360deg); }
}

#hangtime {
  width: 40px;
}
</style>
<script language="JavaScrip