.youtube-carousel-grid{position:relative;mask-image:linear-gradient(to right,transparent,black 6%,black 91%,transparent);-webkit-mask-image:linear-gradient(to right,transparent,black 6%,black 91%,transparent);transition:-webkit-mask-image .3s ease-in-out,mask-image .3s ease-in-out}.youtube-carousel-grid.is-at-beginning{mask-image:linear-gradient(to right,black 91%,transparent);-webkit-mask-image:linear-gradient(to right,black 91%,transparent)}.youtube-carousel-grid.is-at-end{mask-image:linear-gradient(to left,black 91%,transparent);-webkit-mask-image:linear-gradient(to left,black 91%,transparent)}.youtube-carousel-grid.is-at-beginning.is-at-end{mask-image:none;-webkit-mask-image:none}