.#{$emma-prefix}trstf-e {
  transition-timing-function: ease #{emma-important($emma-important)};
}

.#{$emma-prefix}trstf-ei {
  transition-timing-function: ease-in #{emma-important($emma-important)};
}

.#{$emma-prefix}trstf-eo {
  transition-timing-function: ease-out #{emma-important($emma-important)};
}

.#{$emma-prefix}trstf-eio {
  transition-timing-function: ease-in-out #{emma-important($emma-important)};
}

.#{$emma-prefix}trstf-l {
  transition-timing-function: linear #{emma-important($emma-important)};
}