I have this setup:
<div class="wrapper">
<div class="a">1</div>
<div class="a">2</div>
<div class="a">3</div>
<div class="x"></div>
<div class="a">5</div>
<div class="a">6</div>
</div>
I want div class x to occupy remaining width (wrapper minus other elements). Parent wrapper needs to stay responsive.
Is it possible with just css?
edit:
updated the question (all elements are left floated)