Mobile changes

[ericronne]

• [ ] The top-right links should be available on mobile (About, Educators)
• [ ] On Plan a Trip, "Explore parks and sites" needs more leading
• [ ] Several pictures should be reduced to fit the screen:
  • How It Works: family in tent, voucher image (also center the paper pass image)
  • About: kids at the creek
• [ ] The Educators form needs format adjustment (numbers 1 and 2 hit edge of screen and fields overlap/bleed)