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srcset Attribute

From: Mark Simon <mark@manngo.net>
Date: Fri, 17 Jul 2015 13:35:46 +1000
To: public-html@w3.org
Message-ID: <55A87812.80604@manngo.net>
I am mulling over the srcset attribute, which for many developers in 
responsive design is the answer to a prayer.

However, there is one part of the specification which has me befuddled:

	An image candidate string consists of the following components, in order, with the further restrictions described below this list:


	Zero or one of the following:

         	A width descriptor, …

		A pixel density descriptor, …

As far as I can tell, this means that you can specify the width or the 
density, but not both. I cannot see the benefit of this restriction, and 
I can suggest that it renders the specification less than complete.

For example, four candidate devices: an old iPhone, a newer (retina 
screen) iPhone, and older MacBook, a newer (retina screen) MacBook. It 
seems that it is not possible to distinguish between all four devices 
individually, and so one or more of them will need to render a 
non-optimal image.

I would like to propose an amendment to  the specification to read:

	Zero*, one or two*  of the following:

This would allow the specification of both the width and the density, 
and allow the developer more flexibility in responding to various screen 

Best Regards,



  Mark Simon

Manngo Net Pty Ltd

mobile:0411 246 672

email:mark@manngo.net <mailto:mark@comparity.net> web:http://www.manngo.net

Received on Friday, 17 July 2015 12:21:40 UTC

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