transition-g() { transition-delay 0s, 0s, 0s, 0s transition-timing-function ease, ease, ease, ease transition-duration 0.2s, 0.2s, 0.2s, 0.2s transition-property color, background, box-shadow, border-color } transition-t(property, delay, duration, function) { $temp-property = "color, background, box-shadow, border-color" $temp-delay = "0s, 0s, 0s, 0s" $temp-duration = "0.2s, 0.2s, 0.2s, 0.2s" $temp-function = "ease, ease, ease, ease" for p in convert(property) { $temp-property += ("," + p) } for d in convert(delay) { $temp-delay += ("," + d + "s") } for d in convert(duration) { $temp-duration += ("," + d + "s") } for f in convert(function) { $temp-function += ("," + f) } transition-delay convert($temp-delay) transition-timing-function convert($temp-function) transition-duration convert($temp-duration) transition-property convert($temp-property) } .fade-in-down-animation { animation-name fade-in-down animation-duration 1s animation-fill-mode both } @keyframes fade-in-down { 0% { transform translateY(-50px) opacity 0 } 100% { transform translateY(0) opacity 1 } } @keyframes icon-animate { 0% 100% { transform scale(1) } 10% 30% { transform scale(0.88) } 20% 40% 60% 80% { transform scale(1.08) } 50% 70% { transform scale(1.08) } } .title-hover-animation { position relative display inline-block color var(--second-text-color) line-height 1.3 vertical-align top border-bottom none &::before { position absolute bottom -4px left 0 width 100% height 2px background-color var(--second-text-color) transform scaleX(0) visibility hidden content "" transition-t("visibility transform", "0, 0", "0.2, 0.2", "ease-in-out, ease-in-out") } &:hover::before { transform scaleX(1) visibility visible } }