Pure CSS change parent Object?

[Terra]

Hello!

I have a little Problem.
How i can change the Background Color of the next "Test" if i click the Checkbox IN the Label Box ?

<label for="id1">
    <input id="id1" type="checkbox">
</label>

<div class="test">
    test
</div>

<label for="id2">
    <input id="id2" type="checkbox">
</label>

<div class="test">
    test
</div>

Thanks!
Terra