image in h3 overlay h3 border

image in h3 overlay h3 border

I have something like this
<h3 style="border-bottom:1px solid black;">
<strong>Some text</strong><img src="someimg.png">
</h3>
And it's look like this:

And I want to get this:

Anyone know how? Thanks in advance for your answers.
This is my html <h3 style="border-bottom:1px solid black;"> <strong><span
style="font-size:20px;">Spam</span></strong> <img style="width: 50px;
height: 50px; float: right;" src="spam.fw.png" alt=""> </h3>
that's about it for css and html