how further?

hi, i installed yourplugin because that sample image with raspberries and text on bottom over transparant box was exactly what i needed in widgets.
However, after installing and giving it a try, it comes out very differently. Is it the idea to do everything by CSS afterwards? Perhaps you could paste here the css you used for your sample? Thanks ??
(also after uploading image, it doesn’t resize to widget area, just show full size)