JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Google map test</title>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<style type="text/css">
html, body {
    margin:0;
    padding:0;
    height:100%; /* needed for container min-height */
}
div#container {
    height:100%;
    width:100%;
    /*height:auto !important;  real browsers */
     height:100%; /* IE6: treaded as min-height*/
    min-height:100%; /* real browsers */
    margin:0 auto;
    min-height:100%;
    overflow:hidden;
    position:relative;
}
div#header {
    height:50px;
    position:relative;
}
div#leftCol {
    left:0;
    bottom:0;
    top:0;
    overflow:hidden;
    padding-bottom:35px;
    margin-top:55px;
    position:absolute;
    width:300px;
}
div#content {
    right:0;
    bottom:0;
    top:0;
    left: 300px;
    overflow:hidden;
    padding-bottom:35px;
    margin-top:55px;
    position:absolute;
}
div#footer {
    position:absolute;
    clear:both;
    width:100%;
    height:20px;
    bottom:0; /* stick to bottom */
    background:#fff;
    border-top:1px solid #ccc;
}
.paddedContent {
    height:100%;
    margin: 5px;
    border: solid 1px red;
}
</style>
<script type="text/javascript">
function initialize() {
    var latlng = new google.maps.LatLng(52.397, 1.644);
    var myOptions = {
        zoom: 8,
        center: latlng,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
}

</script>
</head>

<body onload="initialize()">
<div id="container">
  <div id="header">
    <h1>Title here...</h1>
  </div>
  <div id="leftCol">
    <div class="paddedContent">This is the left column</div>
  </div>
  <div id="content">
    <div class="paddedContent">
      <div id="map_canvas" style="width: 100%; height: 100%;"></div>
   ...