Putting an image behind some sharing counters

Yeah, school boy errors all day on this and can’t see what I’m doing wrong.

I’ve got a collection of sharing counters on my site and I wish to put an image behind them. The code is in the single.php just like below:

<div class="the_content">

<div style="position:absolute;"><span class='st_plusone' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span><span class='st_pinterest' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span><span class='st_stumbleupon' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span><span class='st_blogger' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span><span class='st_digg' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span><span class='st_tumblr' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span><span class='st_myspace' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span><span class='st_sharethis' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span></div>
<br class="clear" />
<?sfc_like_button(); ?>
<br class="clear" />
<?stc_tweetbutton(); ?>
<br class="clear" />

    	<?php the_content(); ?>

The image I’m planning on at the moment in using is this:

https://thetruejoe90.com/wp-content/uploads/2012/03/Sharing-Background-Pic.jpg

Now putting a small background image behind this code I can’t figure out and I’ve looked online and I can’t quite get it. Despite cooking Sunday lunch, stopping the children from fighting and blocking out the rabbitting from the missus, I just can’t get my head round this today.

Some help would be great. My site is: https://thetruejoe90.com