Please help me to display DVZ_Shoutbox (RESOLVED)

[tartist]

Apologies, perhaps I should have posted this in the plugins section.
I have followed the tutorial here: 
DVZ Shoutbox tutorial

Entering  {$dvz_shoutbox} gives a simple shoutbox display, see below. Then adding the CSS code to the global.css has no effect. Below are screenshots of my entries. Any help would be appreciated.

SOLUTION: after following the tutorial go to the forum index page and reset browser by doing CTRL F5

I added {$dvz_shoutbox} here:


This produces a simple Shoutbox display like this:


I inserted the CSS code here but this made no difference to the shoutbox display:

....................etc.....