Added default value to circumference input

Made the circumferance default value 1 and made the step 1.
Adjusted "main" layout on pg1

Moved "diameter" up and added a bottom border. Centered the legend text over the form.  Removed the max-width on the "section" tag
Forced break add flagstone question

Added a break after the word "flagstone" in the pg1 form question "flagstone path or patio"
Added hover state for pg1 question labels

The lablels change to orange to indicate the entire area is clickable.