.num-blue {
    cursor: pointer !important;
}

.tn-molecule:hover .num-blue .tn-atom {
    color: #3E9AFA !important;
    border-color: #3E9AFA !important;
}

.tn-molecule:hover .step-blue .tn-atom{
    color: #fff !important;
    background-color: #3E9AFA !important;
}