component.hbs

<div class="red-square" id="{{id}}-red-square">
</div>

<style>
  .red-square {
    background-color: red;
  }
</style>

<script>
  var square = $("#{{id}}-red-square")
  square.on('click', function() {
    console.log("Ah you touched me! I am {{id}}")
  })
</script>