Rendering issues of the index page on mobile devices

[marc136]

Thank you for creating pyret, I'm looking forward to getting to know it.

But when browsing the index page on my mobile phone, I noticed two minor things with (likely) small fixes:

1. That horizontal scrolling is possible, which scrolls the pyret logo and the start of the text out of the view.

This is mostly because of the source code display for the tictactoe example:

2. That two preview images were not fully visible. First the great display of the rational numbers, and then further down the one about the cli.

[marc136]

And another one that I guess would be more complicated to address: The editor that is visible in the major features overlay might need love to show more information in portrait orientation: