.nav-back-rep {
    background:#505050!important;
    
}
.login{
background :#0066cb!important;
}
.ex-button-color{background-color:#0066cb !important; background-image:linear-gradient(to bottom, #505050, #505050) !important;}
/*.ex-button-color:hover {background-color:#505050 !important; background-image:linear-gradient(to bottom, #545454, #505050) !important;}*/