Есть таблица типа:
<table class="test" id="kwit_main"
<thead>...</thead>
<tbody>
<tr class="str">...</tr>
<tr class="focus">...</tr>
<tr class="focus">...</tr>
<tr class="focus">...</tr>
<tr class="focus">...</tr>
<tr class="str">...</tr>
<tr class="focus">...</tr>
<tr class="focus">...</tr>
<tr class="focus">...</tr>
<tr class="focus">...</tr>
</tbody>
</table>
Как после первого str вставить еще одну строку?
$('.str').first().after('<tr>...</tr>');
$('.str').first().after('<tr><td>NEW</td></tr>');
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tbody>
<tr class="str"><td>...</td></tr>
<tr class="focus"><td>...</td></tr>
<tr class="focus"><td>...</td></tr>
<tr class="focus"><td>...</td></tr>
<tr class="str"><td>...</td></tr>
<tr class="focus"><td>...</td></tr>
<tr class="focus"><td>...</td></tr>
<tr class="focus"><td>...</td></tr>
</tbody>
</table>
Продвижение своими сайтами как стратегия роста и независимости