.border-parent{margin-bottom:20px}.border-child{border-bottom:1px solid;padding-top:10px}.border-parent:hover .border-child{border-style:dashed;animation:grow 1s ease-in-out forwards}@media (max-width:1024px){.border-child{padding-top:10px}.border-parent{margin-bottom:18px}}@keyframes grow{0%{width:0}to{width:100%}}