:last-child doesn't work with additional content at the end

Question

I have the following scenario:

<div> 
 <p>A</p>
 <p>A</p>
 <p>Target me</p>
 <form></form>
</div>

And I want to target the last <p> tag. Normally, this would work:

div p:last-child {

}

But it only works if I remove the <form> tag. My question: Is it possible to target the final P tag regardless if there is other content at the end?