How do you write a role for a jQuery selter?

[yajahira]

$("#hitsale button, #photogalery button").click(function() {

})

We need to open a floating window on the clip for the assigned buttons.#callOrderModal)

[authera]

 <style>
  .popap {
    position: absolute;
    width:200px;
    height: 200px;
    background: #ccc;
    top: 0px;
    left: 50%;
    display:block;
  }

  .hide {
    display:none;
  }
</style>

<div id="callOrderModal" class="hide">
  Popap
</div>

<div id="hitsale"> Кнопка</div>

 <script>
$('#hitsale').click(function() {
  $('#callOrderModal').removeClass('hide');
  $('#callOrderModal').addClass('popap');
});
</script>