Blockquote spacing

This theme is wonderful and was wondering if someone could help me with a minor tweak.

I mostly use the blockquote tag when I write my blog post with a small image (150×150) aligned left of a justified paragraph. What I want to fix is probably somewhere in the Style.CSS page but I have not been able to find the right parameter.

The text to the bottom of the image is spaced just the way I like it. However, the spacing to the right of the text is too close to each other and is not equal to the spacing of that below it. Where in the Style.CSS page can I configure this?

Many thanks!