JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="ru">
<head>
    <title></title>
    <meta http-equiv="content-type" content="text/html;charset=utf-8" />
</head>
<body>
    <div id="wrapper">
        <div id="header">
            header
        </div>
        <div id="container">
            <div id="sidebar">
                sidebar
            </div>
            <div id="content">
                <div id="panel">panel</div>
                module content
            </div>
            
        </div>
    </div>
</body>

CSS

/** main **/
html {
    height: 100%;
}
body {
    background: #f7fcff;
    height: 100%;
}
#wrapper {
    height: 100%;
    margin: 0 auto -40px
}
#header {
    background: pink;
    height: 45px;
    overflow: hidden;
}
#container {
    overflow: hidden;
    height: 100%;
}
#sidebar {
    float: left;
    width: 229px;
    background: red;
    height: 100%;
}
#content {
    margin-left: 230px;
    background: blue;
    height: 100%;
}
#panel {
    background: yellow;
    height: 39px;
}