@property --rangee-fondu-gauche{syntax:"<length>";inherits:false;initial-value:0}@property --rangee-fondu-droite{syntax:"<length>";inherits:false;initial-value:0}@keyframes rangee-fondu{0%{--rangee-fondu-gauche:0px;--rangee-fondu-droite:28px}8%{--rangee-fondu-gauche:28px}92%{--rangee-fondu-droite:28px}to{--rangee-fondu-gauche:28px;--rangee-fondu-droite:0px}}@supports (animation-timeline:scroll()){.rangee-fondu{-webkit-mask-image:linear-gradient(to right,transparent,black var(--rangee-fondu-gauche),black calc(100% - var(--rangee-fondu-droite)),transparent);mask-image:linear-gradient(to right,transparent,black var(--rangee-fondu-gauche),black calc(100% - var(--rangee-fondu-droite)),transparent);animation:rangee-fondu linear both;animation-timeline:scroll(self inline)}}