@charset "utf-8";.border{position:relative;height:48px}.border:before{content:'';position:absolute;left:0;bottom:0;border-bottom:solid 4px rgba(245,206,39,1);animation:border_anim 3s linear forwards}.border2{position:relative;height:48px}.border2:before{content:'';position:absolute;left:0;bottom:0;border-bottom:solid 4px rgba(199,142,230,1);animation:border_anim 3s linear forwards}@keyframes border_anim{0%{width:0}100%{width:100%}}