body, html, h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6  {
    font-family: "Tahoma" !important;
}

.navbar-static-top.navbar .menu-bar > .navbar-nav > li > a {
     font-family:  "Tahoma" !important;
}