Working with the cssStyleSheet API
– Setting @keyframes Rules -

The initial keyText value for each keyframes rule in the stylesheet is:

Change the keyText for the first Keyframe to 50%

The updated keyText value for each keyframes rule in the stylesheet is:

Tested in Firefox, Chrome, Opera and IE-11 on desktop under Win7; online/offline no difference.

Francky Kleyneman, 5 jan. 2019

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