vertical center an image without knowing dimensions

Question

I have centered a lot of stuff in my webdevelopment career, but I was wondering if there is a simple way to centering an image vertically without knowing the image\'s dimens

Answer 1

You can use this:

#wrapper{    
height: 100%;
min-height: 500px;/*Assuming min-height of the container*/
position: relative;
width: 100%;}

#parent{    
border: 1px solid;
height: 50px;
position: absolute;
top: 50%;
width: 50px;}

Check this in fiddle too http://jsfiddle.net/kYgqx/2/