.triangle:after{content:"";position:absolute;bottom:-8px;left:50%;transform:translateX(-50%);width:0;height:0;border-left:12px solid transparent;border-right:12px solid transparent;border-top:8px solid #525252;border-radius:2px}.triangle{animation:fade-in .4s ease-in forwards}@keyframes fade-in{0%{opacity:0}to{opacity:1}}