<html lang="en">
<head>
<style>
table tr {
height: 1px;
}
table tr td {
height: inherit;
}
table tr td div {
height: 100%;
background: #ddd;
}
</style>
</head>
<body>
<table>
<tbody>
<tr>
<div>aaaaaaaaaaaaaaaaaaaaaaa</div>
</tr>
<tr>
<div>bbbbbbbbbbbbbbbbbbbbbbb</div>
</tr>
<tr>
<div>aaaaaaaaaaaaaaaaaaaaaaa</div>
</tr>
<tr>
<div>aaaaaaaaaaaaaaaaaaaaaaa</div>
</tr>
<tr>
<div>aaaaaaaaaaaaaaaaaaaaaaa</div>
</tr>
<tr>
<div>aaaaaaaaaaaaaaaaaaaaaaa</div>
</tr>
</tbody>
</table>
</body>
</html>