@media only screen and (min-width: 320px) and (max-width: 767px) {
     .content-area {
         padding: 15px 0;
    }
     .navbar-default:before {
         border: none;
    }
     .navbar-default {
         background: transparent;
         position: relative;
    }
     .navbar-default .navbar-toggle {
         border-color: #000;
         position: absolute;
         top: -60px;
         right: 0;
    }
     .navbar-default .navbar-toggle .icon-bar {
         background-color: #000;
    }
     .main-menu {
         height: auto;
    }
     .bottom-header .col-xs-12 {
    }
     .navbar-default .navbar-nav>li>a {
         background-color: #2b4e88;
         padding: 10px 30px;
         border-bottom: solid 1px #375b96;
    }
    .tiles-main li {
        width: 100%;
    }
}