As you can see in my snippet below, I have two container divs that each contain a div with a unique id (`block_1` and `block_2`). 

How can I remove the hidden class of one of the containers by looking for the id of `block_1` or `block_2`? jQuery is fine.

Thanks!

```
<div class="col-md-2 hidden">
    <div id="block_1">...</div>
</div>

<div class="col-md-8 hidden">
    <div id="block_2">...</div>
</div>

```