TwentyTwenty is a jQuery plugin from ZURB that can be used to show multiple sets of before/after images with the images appearing superimposed on each other. Dragging a vertical bar horizontally left and right reveals the before and after image respectively.
In this tutorial, we shall load the files needed for ZURB TwentyTwenty draggable before-after images slider manually only where needed and go through the process of implementing it in WordPress.
Upload twentytwenty.css to child theme's
css directory (create, if not existing).
jquery.twentytwenty.js (this step may not be needed in a future version of the script).
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