I'm attempting to use something along the lines of these speech bubbles in WordPress posts. I have the html and CSS working great separately, but when I add the CSS to styles.css and copy-paste the html into a post, it doesn't look anything like what it's supposed to. My CSS margins are ignored or changed, the global CSS blockquote and img properties are affecting it, the floats don't work, etc, etc.
What can I do to clear this cascading problem so the global CSS doesn't break my own CSS?
Thanks!
-Ian