.simplescrollup__button { position: fixed; bottom: 3rem; right: 3rem; transition: 1s all; z-index: 10000; } .simplescrollup__button--show { transform: translateX(0); } .simplescrollup__button--hide { transform: translateX(100px); } /* Your text duration: Time in milliseconds that it will take to go up above the page. height-hide: Distance in pixels from top at which button will be displayed. easing: You can change the animation scroll for any of this list. Probado y no cambia nada. linear easeInQuad easeOutQuad easeInOutQuad easeInCubic easeOutCubic easeInOutCubic easeInQuart easeOutQuart easeInOutQuart easeInQuint easeOutQuint easeInOutQuint */