Global syntax selector, copy button and side-by-side input/output

[eugenesvk]

Let's say I've set my tools to use Sass syntax instead of SCSS, so I don't care about SCSS syntax
Then for every example in the docs there is this rather suboptimal workflow for using an example:

• click the Sass button
• select (and be careful not to overflow and select some non-example text)
• copy
• paste

It would be great if instead I could just

• click on a global "Show only Sass syntax" button which would hide the SCSS completely and then
• click once on a button to copy the whole example without having to select anything (or maybe triple-click to select just the example)

This would also allow showing the input and output side-by-side instead of having to click CSS and then back on Sass to compare the two