[html] Replace image src location using CSS

I have a website that has an image with a src attribute and I would like to change the src location of that image with an image of my own. The image lives in a div component. I can't change the HTML and am looking ways to change it using CSS only please.

Div component:

<div class="application-title">
<img style="margin-top: 3px;height: 45px;" src="image.svgz">
</div>

Image component(CSS file):

.application-title IMG
{
    float: left;
    margin-top: 5px;
    margin-right: 10px;
    opacity: 1;
    margin-left: 0px;
    visibility: hidden;
}

you can use: content:url("image.jpg")

<style>
.your-class-name{
    content: url("http://imgur.com/SZ8Cm.jpg");
}
</style>

<img class="your-class-name" src="..."/>

Here is another dirty hack :)

.application-title > img {
display: none;
}

.application-title::before {
content: url(path/example.jpg);
}

You could do this but it is hacky

.application-title {
   background:url("/path/to/image.png");
   /* set these dims according to your image size */
   width:500px;
   height:500px;
}

.application-title img {
   display:none;
}

Here is a working example:

http://jsfiddle.net/5tbxkzzc/