<style>
#splash_art {
 position: absolute;
 left: [distance from left edge];
 height: [Height parameter];
 width:  [width parameter];

}

#some_id {
 height: [Some percentage of 100]%;

}

</style>

<div id="splash_art">
<img id="some_id" src="http://www.domain.ext/directory/img.ext">
</div>