How to vertically align items in horizontally ul list with images?

Question

I have the following html code:

<div id="footer">
    <ul id="yw1">
        <li><a href="/index.php/site/login">About</a></li>
        <li><a href="/index.php/site/login">FAQ</a></li>
        <li><a href="http://twitter.com"><img src="/images/twitter_icon.png" /></a></li>
        <li><a href="http://twitter.com"><img src="/images/facebook_icon.png" /></a></li>
    </ul>       
</div>

And the following CSS styles:

#footer {
    margin-top: 25px;
    background: #000000 url(images/background.png) repeat;
    padding: 25px;
    box-shadow: 0px 0px 10px 5px rgba(0, 0, 0, .2);
}
#footer ul {
    margin: 0;
    padding: 0px 0px 0px 0px;
    list-style: none;
    line-height: normal;
}
#footer li {
    padding-left: 20px;
    display: inline;
    list-style-type: none;
}
#footer a {
    color:white;
    letter-spacing: 1px;
    text-decoration: none;
    text-align: center;
    font-size: 14px;
    font-weight: 300;
}

Now result is:

But I need to align images and text links by vertically. How can I do it?

Solution

As img tag is inline by default, it vertically aligns to the baseline and hence you need to use vertical-align: middle; for your img tag

Demo

CSS

#footer img {
    vertical-align: middle;
}