Code review comment for lp:~ahayzen/music-app/walkthrough-max-width

In order to match the visual mockups a few things need to be fixed:

1. In general there needs to be more space between the images and the title text. The title and body text. The text should be more than half way down the screen. This is the reason I had it anchored to the bottom of the screen. Perhaps we can fix this by making the spacing value a % of the window height?
2. Similar to the above, the "Start" button should be far closer to the bottom of the screen. Looking at it now, even my tweak might not have put it close enough to the bottom to match the design spec.