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Holder.js helper for middleman. Holder.js works offline.
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| # Require holder.js https://github.com/imsky/holder | |
| def holder(width, height) | |
| color = ("%06x" % rand(0..0xffffff)) | |
| return '<img data-src="holder.js/' + width.to_s + 'x' + height.to_s + '/auto/#' + color.to_s + ':#' + color.to_s + '">' | |
| end |
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