FOUC. Don't display stuff that isn't ready to be displayed. Works every time. See the Pen 1ca9abd527195fea490d9bd5de7d29ae by osublake (@osublake) on CodePen   Or you can use autoAlpha for a nice entrance effect. I'm not sure, but this thread sounds similar. Somebody wanted to use to use translateX percents from their CSS.     .
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