Булат Азат улы,
<!DOCTYPE HTML>
<html>
<head>
<title></title>
<meta charset="utf-8" />
<style type="text/css">
.textContent {
display: none;
}
.active{
background-color: #DCDCDC;
}
.active + .textContent{
display: block;
}
</style>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript">
$(function() {
$text = $(".text");
$text.on("click", function() {
$text.not($(this).toggleClass("active")).removeClass("active");
})
});
</script>
</head>
<body>
<p class="text">Клик1</p>
<div class="textContent">
<p>Контент.1</p>
</div>
<p class="text">Клик2</p>
<div class="textContent">
<p>Контент.2</p>
</div>
</body>
</html>