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#17: Sliding Doors Button

While sliding doors is far from a new concept and will be obsoleted once we see wider support for multiple backgrounds (CSS3), it is still a good one for your bag-of-tricks. The theory is that if we have an extra hook in our markup, we can apply two overlapping background images to a single spot of text. When that text grows or shrinks, these overlapping images and reveal more of themselves creating the illusion it is a single expandable graphic. In this screencast we do a quickly example of how this can work for a button.

Comments

  1. Will you please teach us, how to calculate the images sprite coordinates mathematics in details?

    A screencast on this topic only.

    Please it’d make me clear to apply this technique.

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