.undeline {
background-image: linear-gradient(120deg, #ec008c,#fc6767 100%);
background-repeat: no-repeat;
background-size: 100% 0.3em;
background-position: 0 80%;
transition: background-size 0.25s ease-in;
}
.undeline:hover {
background-size: 100% 88% !important;
}