Implement the new copy & run buttons

[chasenlehara]

From: #551 (comment)

Two rough mockups::

Changes:

• The current “Run in your browser” button at the bottom of demos moves to the upper right
• The style for those action buttons (copy & run) change
• Currently the action buttons only appear on hover; with @media (hover: hover), we should make the action buttons always appear on non-hover devices and appear on hover on devices that support hover
• The code snippets on the homepage should also change to match this new style

Specs (you can ask @jamiemccue for any more details):

• Font size: .8em
• Font color: #858585
• Hover color: #4078c0

[justinbmeyer]

Should we put a line between Copy and Run to make them appear more as individual buttons?

[jamiemccue]

I don't see them as buttons but rather as links. For reference here is an example with lines.

[chasenlehara]

It looks like the new buttons aren’t showing up in the API signatures:

[cherifGsoul]

Yeah I opened an issue about it too canjs/canjs#5390