Creating a border gap - css

Question

I'm trying to get a gap created within a div's border to fit an image, similar to this:
Is there a way to do this in pure CSS? All I can see is:
.box {
background: url(img.png) bottom left;
border-top: 1px solid #eee;
border-left: 1px solid #eee;
}
But my problem is border-right: 1px solid #eee; creates a line on top of my image, which is of course not desired.
It needs to be responsive. This image is an example, but you get the general idea.

Answer 1

Something like this?
http://jsfiddle.net/6Ufb5/
div {
border: 1px solid #ccc;
position: relative;
}
img {
position: absolute;
top: 10px;
left: 10px;
}
Give the container position relative and the img absolute, shift it to left 10px and shift it down 10px from the top and you have what you desire.
For the responsive part, that's just giving the container and/or img a % width.
Like so:
http://jsfiddle.net/6Ufb5/2/

Answer 2

You can achieve this by using absolute positioning of the image element - and it has to be in a <img> element, not as the background image because it will never overlap the parent border (or even if it does by adjusting the background-position property, the border will lie on top of the background image... a behavior that is expected, by the way.
<div class="box">
Content goes here
<img src="http://placehold.it/300x200" />
</div>
And the CSS:
.box {
position: relative;
border: 1px solid #333;
}
.box img {
position: absolute;
bottom: -1px;
right: -1px;
}
If you want a dynamic and/or responsive solution, you might have to resort to JS to doing so - such as resizing the image depending on the box dimensions, and assigning a height to the box to take into account of the image height (since image is absolutely positioned, it is taken out of the document flow).
See fiddle here: http://jsfiddle.net/teddyrised/xH6UV/

Answer 3

This might work if you can alter your markup. For accessibility I think the image should be an image and not a background, and this method is responsive (though you may want to alter margins at small sizes with media queries).
http://jsfiddle.net/isherwood/79Js5
.box {
border: 1px solid #ccc;
display: inline-block;
padding: 10px 0 10px 10px;
width: 40%;
}
.box img {
margin-right: -10%;
margin-bottom: -10%;
width: 105%;
}
<div class="box">
<img src="http://placehold.it/200x100/f3f3f3" />
</div>