<fieldset>
	<legend>Login</legend> 
	<table>
		<tr><td>Username</td><td><input type="text"></td></tr>
		<tr><td>Password</td><td><input type="text"></td></tr>
	</table>
</fieldset>

body{
	font-family: 'Averia Serif Libre';
	margin: auto; 
	margin-top: 25vh;
	width: 320px; height: 320px;
}
input{ border: 1px solid; }
td:first-child{ width: 100px; }