Selektoren

by pw_we1

HTML

<div class="item" id="outer">
  <div class="item" id="in1">Element 1</div>
  <div class="item" id="in2">Element 2</div>
  <div class="another" id="in3">Element 3</div>
</div>

CSS

body { background-color:orange; }
.item {background-color:lightblue;}
#in1 { background-color:lightgreen; }
#outer div { border:5px solid green; }
#outer .item:hover { border:5px solid red; }