css:图标与文字对齐的两种方法

<div>    
        <img src="" alt="" class="heart">    
        <span>1169span>    
        <img src="" alt="" class="comment">    
        <span>1168span>    
div>    

div{    
     height:30px;    
     line-hight:30px;    
}    
.heart,.comment{    
        vertical-align:middle;    
}  

<div>    
        <span class="heart">1169span>    
        <span class="comment">1168span>    
div> 

.hear{    
        background:url(images/heart.png) left center no-repeat;    
        margin-right:20px;    
}    
.comment{    
        background:url(images/comment.png) left center no-repeat;    
}    
.hear,.comment{    
        height:30px;    
        line-height:30px;    
        padding-left:20px;    
}