Are all startup websites based on a certain theme? If so,is there a way to easily build sites like it or are they all just built custom on a framework like bootstrap?
Some examples of what I mean:
https://www.quivee.com/
http://sendgrid.com/
http://www.mashery.com/
http://www.twilio.com/
https://trychec.com/
http://cropup.com/
And a ton more!
They're all different, but they seem to share the same underlying theme.