Placing an image to the top right corner - CSS

Position the div relatively, and position the ribbon absolutely inside it. Something like:

#content {
  position:relative;
}

.ribbon {
  position:absolute;
  top:0;
  right:0;
}

You can just do it like this:

<style>
    #content {
        position: relative;
    }
    #content img {
        position: absolute;
        top: 0px;
        right: 0px;
    }
</style>

<div id="content">
    <img src="images/ribbon.png" class="ribbon" alt="" />
    <div>some text...</div>
</div>

While looking at the same problem, I found an example

<style type="text/css">
#topright {
    position: absolute;
    right: 0;
    top: 0;
    display: block;
    height: 125px;
    width: 125px;
    background: url(TRbanner.gif) no-repeat;
    text-indent: -999em;
    text-decoration: none;
}
</style>

<a id="topright" href="#" title="TopRight">Top Right Link Text</a>

The trick here is to create a small, (I used GIMP) a PNG (or GIF) that has a transparent background, (and then just delete the opposite bottom corner.)