I want to vertical align an image inside a div.
This is the code I use:
<div class="product-image-gallery">
<img id="image-main" class="gallery-image visible" src="http://2.bp.blogspot.com/-NJTDTa6UZf4/U3Bu-B5XrbI/AAAAAAAAOf8/yVCeh-yMr-k/s1600/google-logo-874x288.png">
</div>
See this JSFiddle: https://jsfiddle.net/myvuacwy/