public function AppendChartCssTemplate()
{
$content = <<<EOD
<!-- Begin Css For Chart -->
<!--you should move chart style to a permanent home -->
<style>
canvas {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}
#chart {
width: 600px;
height: 400px;
margin-bottom: 150px;
}
#label {
margin-top: 20px;
}
</style>
<!-- End Css For Chart -->
EOD;
return $this->tokenBuilder->insertTokensIntoContent($content);
}