[рони]

tp-20,
формируйте таблицу по "человечески" и будет вам счастье.

<style>
table {border-collapse: collapse;}

td, th {
	border: 1px solid rgba(128, 128, 128, 0.25);
	padding: 0.5em;
}


table > thead > tr:first-child {background-color: #999;}
table  tbody:nth-child(odd):hover {box-shadow: 0 0 0 2px red inset;}
table  tbody:nth-child(even):hover {box-shadow: 0 0 0 2px blue inset;}
</style>
<table>
        <thead>
            <tr>
			<th>Имя</th>
			<th>Предмет</th>
			<th>Кол-во</th>
            </tr>
		</thead>
	<tbody>

		<tr>
			<td rowspan="4">Маша</td>
			<td>Карандаш</td>
			<td>1</td>
		</tr>
		<tr>
			<td>Ручка</td>
			<td>3</td>
		</tr>
		<tr>
			<td>Блокнот</td>
			<td>4</td>
		</tr>
		<tr>
			<td>Прищепка</td>
			<td>4</td>
		</tr>
	</tbody>
	<tbody>
		<tr>
			<td rowspan="3">Саша</td>
			<td>Шишка</td>
			<td>5</td>
		</tr>
		<tr>
			<td>Мышка</td>
			<td>1</td>
		</tr>
		<tr>
			<td>Батарейка</td>
			<td>6</td>
		</tr>
	</tbody>
</table>