layout.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>TurboCMS Example</title>
    <link rel="stylesheet" type="text/css" href="core/css/turbocms.css"/>
</head>
<body>

<div class="container">

    <div class="header">
        {{header}}
    </div>
    <div class="content">
        {{main_content}}
    </div>

    <div class="footer">
        {{footer}}
    </div>

</div>

</body>
</html>