.tn-atom a{
    transition: all 0.3s ease 0s;
    position: relative;
}
.tn-atom a:before{
    position: absolute;
    width: 100%;
    height: 2px;
    transform: scale(0 , 1);
    background-color: #8242d6;
    bottom: 1px;
    transition: all 0.3s ease 0s;
}
.tn-atom a:hover:before{
       transform: scale(1 , 1);
}
.tn-atom a:hover{
    text-decoration: none;
    color: #8242d6;
}