Apply css style for each div.

<style type="text/css">
		#settings {
			float:right; 
			display: none;
		}
	</style>

<script type="text/javascript">
	    $(function () {
	        $('.post').mouseover(function () {//mouseover method for post class div
	            $('.post span').show(); 
                    //select span of post class div
	        }).mouseout(function () {
	            $('.post span').css('display', 'none');
                    //select span of post class div
	        });
        
        });
        
	</script>

<div class="post">
		Some text here
		<span style="float:left"><a href="#">коментувати</a></span>
		<span><a href="#">редагувати</a> | <a href="#">видалити</a></span>
		<br /><br />
		<hr>
	</hr></div>
	
	<div class="post" style="">
		Some text here
		<span style="float:left"><a href="#">коментувати</a></span>
		<span><a href="#">редагувати</a> | <a href="#">видалити</a></span>
		<br /><br />
		<hr>
	</hr></div>