<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <style>
        html,body{
            width: 100%;
            height: 100%;
        }
        * {
            padding: 0;
            margin: 0;
        }
        .chartContainer
        {
            position: absolute;
            top: 0;
            left: 0;
            width: 80%;
            height: 80%;
        }
    </style>
</head>
<body>
<div class="chartContainer"></div>
</body>
</html>