Two minor tweaks:

• Make the widget a tad slimmer in width by default since there's a lot of blank whitespace on the right, which makes it feel very left-heavy. Cons: it makes for less space in the question before it wraps + the feedback textarea becomes a bit smaller. I think both are acceptable though as it still allows for decent length of the question before wrapping to 2+ lines.
• Increase line-height somewhat for the title and textarea to give it slightly more breathing room