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@davidpett
Last active December 13, 2023 22:49
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Easing Equations as SCSS variables
/*
* Easing Equations ported to CSS by @matthewlein - http://matthewlein.com/ceaser/
* Converted to SCSS vars by @pettpett
*
* sample usage:
* a {
* color: #ff0000;
* transition: color 0.5s $easeOutQuint;
* &:hover,
* &:focus {
* color: #ff9900;
* }
* }
*/
/* Default Equations */
$linear: cubic-bezier(0.250, 0.250, 0.750, 0.750);
$ease: cubic-bezier(0.250, 0.100, 0.250, 1.000);
$easeIn: cubic-bezier(0.420, 0.000, 1.000, 1.000);
$easeOut: cubic-bezier(0.000, 0.000, 0.580, 1.000);
$easeInOut: cubic-bezier(0.420, 0.000, 0.580, 1.000);
/* Penner Equations (approximated) originally created by @robpenner */
$easeInQuad: cubic-bezier(0.550, 0.085, 0.680, 0.530);
$easeInCubic: cubic-bezier(0.550, 0.055, 0.675, 0.190);
$easeInQuart: cubic-bezier(0.895, 0.030, 0.685, 0.220);
$easeInQuint: cubic-bezier(0.755, 0.050, 0.855, 0.060);
$easeInSine: cubic-bezier(0.470, 0.000, 0.745, 0.715);
$easeInExpo: cubic-bezier(0.950, 0.050, 0.795, 0.035);
$easeInCirc: cubic-bezier(0.600, 0.040, 0.980, 0.335);
$easeInBack: cubic-bezier(0.600, -0.280, 0.735, 0.045);
$easeOutQuad: cubic-bezier(0.250, 0.460, 0.450, 0.940);
$easeOutCubic: cubic-bezier(0.215, 0.610, 0.355, 1.000);
$easeOutQuart: cubic-bezier(0.165, 0.840, 0.440, 1.000);
$easeOutQuint: cubic-bezier(0.230, 1.000, 0.320, 1.000);
$easeOutSine: cubic-bezier(0.390, 0.575, 0.565, 1.000);
$easeOutExpo: cubic-bezier(0.190, 1.000, 0.220, 1.000);
$easeOutCirc: cubic-bezier(0.075, 0.820, 0.165, 1.000);
$easeOutBack: cubic-bezier(0.175, 0.885, 0.320, 1.275);
$easeInOutQuad: cubic-bezier(0.455, 0.030, 0.515, 0.955);
$easeInOutCubic: cubic-bezier(0.645, 0.045, 0.355, 1.000);
$easeInOutQuart: cubic-bezier(0.770, 0.000, 0.175, 1.000);
$easeInOutQuint: cubic-bezier(0.860, 0.000, 0.070, 1.000);
$easeInOutSine: cubic-bezier(0.445, 0.050, 0.550, 0.950);
$easeInOutExpo: cubic-bezier(1.000, 0.000, 0.000, 1.000);
$easeInOutCirc: cubic-bezier(0.785, 0.135, 0.150, 0.860);
$easeInOutBack: cubic-bezier(0.680, -0.550, 0.265, 1.550);
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