[x] The landing page (/) contains four sections vertically aligned.
[x] Section 1 has a title and intro text on the left and an infographic on the right.
[x] Section 2 has a subtitle and caption centered on the page.
[x] Section 3 has three columns each with an icon, link with an underline and pointer cursor when the mouse rolls over it, and a caption.
[x] Section 3's first column has a link with the text "See all groups".
[x] Section 3's second column has a link with the text "Find an event"
[x] Section 3's third column has a link with the text "Start a group" (if the user is not logged in, then this link is disabled - light grey text with no rollover or click events)
[x] Section 4 has a "Join Meetup" button centered horizontally.
/
) contains four sections vertically aligned.