While http://dev.w3.org/csswg/css3-transitions/#animation-of-property-types- describes how each property type undergoes a transition, it doesn't define how interpolation should occur between value types. eg. between a percentage and a length. I would imagine that you'd compute a length from the percentage, then interpolate over the lengths. But this is a little more complicated in the case of background-position, for instance. If you have: { background-image: url('1.gif'), url('2.gif'), url('3.gif'); background-size: 100px 100px, 200px 200px, 300px 300px; background-position: 50%; transition: background-position 5s; width: 500px; height: 500px; } then set element.style.backgroundPosition="100px"; What does a transition and its corresponding computed value look like in this case?Received on Tuesday, 8 November 2011 22:39:53 UTC
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