Plugin changes text size and spacing

Hello David,

Thanks for a great plugin—much appreciated. Love that it is responsive and stacks the text columns.

A few issues I am experiencing though:

1. It alters the text size (makes it smaller)
2. It alters the line spacing (reduces it)
3. It does not add a space between columns when the browser size is reduced and the columns become stacked. Because of this, you cannot distinguish one paragraph from another.

You can see all of this on a sample post I did here:

http://www.idapostle.com/test-post-for-responsive-columns/

Is there any way for me to fix these issues?

Thanks.

http://wordpress.org/extend/plugins/bybrick-columns/