after thirth div jquery code example
Example 1: jquery specific child by index
<div class="second">
<div class="selector" id="selFirst">Number One</div>
<div class="selector" id="selSecond">Number Two</div>
<div></div>
</div>
<script>
var index = 0
console.log($('.second').children().eq(index).text());
//Number One
</script>
Example 2: how to select second element in jquery
$("div:eq(1)");