Size of call to action button versus less important call to actions
A web page may have multiple calls for action. To indicate the relative importance of a call to action with respect to other actions, you can vary their sizes. Here is an example of this concept on the paramore|redd 3 website where the call to action button that asks the user to sign up for their newsletter is significantly larger than the continue reading call to action, indicating that on this web page, they would rather you take the action of subscribing versus reading the blog posts.
