How add style to a div outside of a button

Question

I want add a style to a div without class and id.

<div style="position: absolute; right: 10px; top: 4px;">
<button type="button" class="close" onclick="cancelParty();">×</button>
</div>

I'm Try the next :

div.close{position:relative!important;}
div<.close{position:relative!important;}
div>.close{position:relative!important;}

and nothing.