<div style="border: solid 1px black; width: 300px; height: 100px; position: relative ">
    <span id="left-top" style="position: absolute; left: 10px; top: 10px">left-top</span>
    <span id="right-top" style="position: absolute; right: 10px; top: 10px">right-top</span>
    <span id="left-bottom" style="position: absolute; left: 10px; bottom: 10px">left-bottom</span>
    <span id="right-bottom" style="position: absolute; right: 10px; bottom: 10px">right-bottom</span>
</div>