Hola,
spiel damit herum...
<style>
#liste:target {
background-color: Gold;
}
#liste {
width: 50px;
height: 50px;
padding: 10px;
display: none;
}
input[type=checkbox]:checked + #liste {
display: block;
}
</style>
<div>
<input type="checkbox" value="1" id="checker1">
<div id="liste"></div>
</div>
gruss kai