.navbar .navbar-nav .nav-link {
    text-transform: none;
}
.navbar-expand-lg .nav-item > .nav-link, .navbar-expand-lg .navbar-no-collapse-items .nav-item {
    height: auto;
}
#div_main a, #div_main th a, #div_main td a{
    color:steelblue;
}
#div_main a:hover, #div_main th a:hover, #div_main td a:hover{
    color:brown;
}
#div_main a.btn{
    color:unset;
}