Dropdown Menu Style : demo 51

                        
                        .demo{ background: #F44336; }
                        nav.navbar.bootsnav{
                            border: none;
                            background: none;
                        }
                        nav.navbar.bootsnav ul.nav > li{ margin-right: 20px; }
                        nav.navbar.bootsnav ul.nav > li > a{
                            color: #fff;
                            font-size: 15px;
                            font-weight: 600;
                            letter-spacing: 1px;
                            text-transform: uppercase;
                            padding: 10px 15px;
                            border-radius: 0;
                            overflow: hidden;
                            position: relative;
                            z-index: 1;
                            transition: all 0.5s ease 0s;
                        }
                        nav.navbar.bootsnav ul.nav > li.dropdown > a{ padding: 10px 30px 10px 15px; }
                        nav.navbar.bootsnav ul.nav > li.active > a,
                        nav.navbar.bootsnav ul.nav > li.active > a:hover,
                        nav.navbar.bootsnav ul.nav > li > a:hover,
                        nav.navbar.bootsnav ul.nav > li.on > a{
                          color: #F44336;
                          background-color: transparent;
                        }
                        nav.navbar.bootsnav ul.nav > li > a > span:before,
                        nav.navbar.bootsnav ul.nav > li > a > span:after{
                            content: "";
                            width: 0;
                            height: 0;
                            background: #fff;
                            border-radius: 10px;
                            position: absolute;
                            top:0;
                            left: 0;
                            z-index: -1;
                            transition: all 0.3s ease 0s;
                        }
                        nav.navbar.bootsnav ul.nav > li > a > span:after{
                            left: auto;
                            top: auto;
                            right: 0;
                            bottom: 0;
                        }
                        nav.navbar.bootsnav ul.nav > li:hover > a > span:before,
                        nav.navbar.bootsnav ul.nav > li.active > a > span:before,
                        nav.navbar.bootsnav ul.nav > li:hover > a > span:after,
                        nav.navbar.bootsnav ul.nav > li.active > a > span:after{
                          width: 100%;
                          height: 100%;
                        }
                        nav.navbar.bootsnav ul.nav > li.dropdown > a.dropdown-toggle:after{
                            position: absolute;
                            top: 10px;
                            right: 10px;
                            margin: 0 0 0 7px;
                        }
                        nav.navbar.bootsnav ul.nav > li.dropdown > ul{
                            top: 100%;
                            transition: all 0.8s ease 0s;
                        }
                        nav.navbar.bootsnav ul.nav > li.dropdown.on > ul{ top: 140%; }
                        .dropdown-menu.multi-dropdown{
                            position: absolute;
                            left: -100% !important;
                        }
                        nav.navbar.bootsnav li.dropdown ul.dropdown-menu{
                            box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
                            border: none;
                            border-radius: 10px;
                        }
                        nav.navbar.bootsnav li.dropdown ul.dropdown-menu.megamenu-content li a:hover,
                        nav.navbar.bootsnav li.dropdown ul.dropdown-menu li a:hover{
                            color: #F44336;
                            background-color: rgba(0,0,0,0.1);
                            transition: all 0.3s ease 0s;
                        }
                        nav.navbar.bootsnav li.dropdown ul.dropdown-menu.megamenu-content li{ font-size: 14px; }
                        nav.navbar.bootsnav li.dropdown ul.dropdown-menu.megamenu-content .title{
                            font-size: 16px;
                            font-weight: bold;
                            color:#F44336 ;
                        }
                        @media only screen and (max-width: 990px){
                            .dropdown-menu.multi-dropdown{ left: 0 !important; }
                            nav.navbar.bootsnav .navbar-toggle{
                                background: transparent !important;
                                color: #fff;
                            }
                            nav.navbar.bootsnav ul.nav > li{
                                width: 75%;
                                margin: 5px auto 15px;
                            }
                            nav.navbar.bootsnav.navbar-mobile ul.nav > li > a{
                                text-align: center;
                                color: #fff;
                                border: none;
                            }
                            nav.navbar.bootsnav ul.nav > li.dropdown > a{ padding: 15px 30px 15px 15px; }
                            nav.navbar.bootsnav ul.nav > li.active > a,
                            nav.navbar.bootsnav ul.nav > li > a,
                            nav.navbar.bootsnav ul.nav > li > a:hover,
                            nav.navbar.bootsnav ul.nav > li.on > a{ color: #F44336; }
                            nav.navbar.bootsnav.navbar-mobile .navbar-collapse{ background: #F44336; }
                            nav.navbar.bootsnav ul.nav li.dropdown ul.dropdown-menu > li > a{
                                color: #fff;
                                border-bottom-color: none;
                                padding: 0 10px;
                            }
                            nav.navbar.bootsnav li.dropdown ul.dropdown-menu.megamenu-content li a:hover,
                            nav.navbar.bootsnav li.dropdown ul.dropdown-menu li a:hover,
                            nav.navbar.bootsnav li.dropdown ul.dropdown-menu.megamenu-content .title:hover{
                                background-color: rgba(255,255,255,0.2);
                            }
                            nav.navbar.bootsnav li.dropdown.on a.dropdown-toggle::before{ color: #F44336 !important; }
                            nav.navbar.bootsnav ul.nav > li.dropdown > ul{ top: 100%; }
                            nav.navbar.bootsnav li.dropdown ul.dropdown-menu.megamenu-content .title,
                            nav.navbar.bootsnav.navbar-mobile ul.nav ul.dropdown-menu .col-menu ul.menu-col li a{
                                font-size: 14px;
                                font-weight: normal;
                                color: #fff;
                                padding: 0 10px;
                            }
                        }