The Timeline view is based on the "Today+Happening Soon" view style, and uses some of the same underlying settings.
This view style is fully responsive, and will automatically adjust to various screen sizes.
Customize this view
This view style shows events starting from today's date, and looking ahead 10 days into the future. You can change the "look-ahead" period using the on the Additional General Options page
The colors for this calendar (background, title, time labels) come from your settings for the calendar List View.
Play with a live sample here: http://localendar.com/public/timelinedemo?style=D5&start_date=6/1/16