How to set conditions on jquery selector?

Question

JavaScript

There are elements:

<div class="number_box">
  <div class="number_service" data-row-index="1">первый</div>
......
</div>
<div class="number_box">
  <div class="number_service" data-row-index="2">второй</div>
......
</div>
<div class="number_box">
  <div class="number_service" data-row-index="3">третий</div>
        ......
</div>

They are not available as children of the same element, always a null element number_box
How to find this element by class and data?
something like this:
$('. number_service[data-row-index="2" ]').css({'dicplay' : 'block'})

Answer 1

The topic is closed, I did everything right, I just took the wrong data names
This is a working version.