<style>
    div.outer { overflow: auto; width: 100px; position: relative; height: 100px; border: solid; }
    div.inner { position: absolute; top: 250px; }
</style>
LTR:
<div class="outer">
    <div class="inner" style="left: 200px;">foo</div>
</div>

RTL:
<div class="outer" style="direction: rtl;">
    <div class="inner" style="right: 200px;">foo</div>
</div>