.nav-tabs .grey-tabs a {
    background-color: #eee;
    color: #555;
    }
.nav-tabs .grey-tabs a:hover {
    background-color: #555!important;
    color: #eee!important;
    }
.nav-tabs .grey-tabs.active a,
.nav-tabs .grey-tabs.active a:hover {
    background-color: #555!important;
    color: #eee!important;
    border-bottom-color: transparent!important;
    }

.nav-tabs {
    font-size:16px;
    }
.nav-tabs>li.active>a {
    color:#CD0511!important;
    }
tabs>li.active>a:focus, .nav-tabs>li.active>a:hover {
    border-bottom-color:#fff!important; {
        }
    }
@media (max-width:550px) {
    .nav-tabs>li {
        float: unset;
        }
    .nav-tabs>li.active>a {
        border-bottom-color: #ddd!important;
        }
}