Since rawgit it not working anymore, i did two bookmarklets to view Github HTML page.
Drag this link to your bookmarks to view and test Github HTML page.
To to a Github project HTML page and click your bookmarklet to view it.
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Load Youtube video to Hooktube bookmarklet
Load Youtube video to Hooktube bookmarklet
Custom slider with Crelly Slider
I do some work for client and this is a example of using a existing good free plugin like Crelly Slider and with some jQuery and CSS recreating the exact result that the client was asking for. See the width version