<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div class="container">
<a id="click">Скажу</a>
<modal-dialog open_b="click">
<h1>Привет</h1>
</modal-dialog>
<script src="../assets/js/modals.js"></script>
</div>
</body>
</html>