css class selector parent > child

Question

There is any add css rule to a parent class if is a child class is present? Like this

.parent{
some rules
}

.child{
some rules
}

.parent > .child{
add a rule to parent
}

I've this html

<div class="PARENT">
  <div class="something">
  <div class="something1"></div>
  <div class="CHILD"></div>
  </div>
</div>