$wt = new WebTemplate();
$wt->add_head_contents('<meta name="robots" content="none" />');
-$wt->add_head_contents('<link rel="stylesheet" type="text/css" href="css/score-table.css">');
+$wt->add_head_contents('<link rel="stylesheet" type="text/css" href="./css/score-table.css">');
$wt->add_head_contents(
<<<EOM
<script crossorigin src="https://unpkg.com/react@16/umd/react.production.min.js"></script>