<!DOCTYPE html>
<html>
<head>
<style type='text/css'>
#red-input {
border-color: red;
}
</style>
</head>
<body>
<table>
<tr>
<td><input id="red-input" /></td>
</tr>
<tr>
<td><input /></td>
</tr>
</table>
</body>
</html>