mdb-ui-kit/scss/mixins/_animations.scss

// Animations (from mdl http://www.getmdl.io/)

@mixin material-animation-fast-out-slow-in($duration:0.2s) {
  transition-duration: $duration;
  transition-timing-function: $mdb-animation-curve-fast-out-slow-in;
}

@mixin material-animation-linear-out-slow-in($duration:0.2s) {
  transition-duration: $duration;
  transition-timing-function: $mdb-animation-curve-linear-out-slow-in;
}

@mixin material-animation-fast-out-linear-in($duration:0.2s) {
  transition-duration: $duration;
  transition-timing-function: $mdb-animation-curve-fast-out-linear-in;
}

@mixin material-animation-default($duration:0.2s) {
  transition-duration: $duration;
  transition-timing-function: $mdb-animation-curve-default;
}