【children_index】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-2.1.0.js'></script>
<script type='text/javascript'>
$(window).load(function(){
$('#main').children().css({"background":"red"});
});
</script>
</head>
<body>
<div id="main">
<div id="one">Images 1</div>
<div id="two">Images 2</div>
</div>
</body>
</html>
