<!DOCTYPE HTML>
<html>
<head>
  <title>Timeline | Editable Groups</title>

  <style>
    body, html {
      font-family: arial, sans-serif;
      font-size: 11pt;
    }

    #visualization {
      box-sizing: border-box;
      width: 100%;
      height: 300px;
    }
    
    .vis-item.openwheel  { background-color: #B0E2FF; }
    .vis-item.rally      { background-color: #EAEAEA; }
    .vis-item.motorcycle { background-color: #FA8072; }
    .vis-item.touringcar { background-color: #B4EEB4; }
    .vis-item.en