.flex-footer{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}
.flex-footer.gap-20{
    gap: 20px;
}

.flex-footer a{
    color:#5b4225;
}

.flex-footer  a::after {
    content: '';
    display: block;
    width: 0;
    height: 1px;
    position: relative;
    bottom: 0;
    background:  #5b4225;
    transition: width .3s;
}
.flex-footer  a:hover::after {
    width: 100%;
}