I want to vertically center a table using just bootstrap, but I can't. I have managed to align it horizontally but vertically I don't know how. This is the code I have:
<html>
<head>
<meta charset="UTF-8">
<title></title>
<LINK REL=StyleSheet HREF="css/bootstrap.css" TYPE="text/css">
<script src="js/jquery-3.5.1.slim.min.js" type="text/javascript"></script>
<script src="js/popper.min.js" type="text/javascript"></script>
<script src="js/utilidades.js" type="text/javascript"></script>
</head>
<body>
<div class="container d-flex flex-row justify-content-center alig-items-center">
<table border="1">
<tr><td>1</td></tr>
<tr><td>2</td></tr>
<tr><td>3</td></tr>
</table>
</div>
</body>
</html>
