How to add a modifier to an element?

Question

Emmet

I write:
.block._mod>.-elem._mod
I receive:

<div class="block block_mod">
  <div class="block__elem block block_mod"></div>
</div>

I want to get this:

<div class="block block_mod">
  <div class="block__elem block__elem_mod"></div>
</div>