#menu_nav {
    margin: 0;
    padding: 0;
    height: 39px;
    border: 1px solid #222;
    background-color: #111;
    background-image: -moz-linear-gradient(#444, #111);
    background-image: -webkit-gradient(linear, left top, left bottom, from(#444), to(#111));
    background-image: -webkit-linear-gradient(#444, #111);
    background-image: -o-linear-gradient(#444, #111);
    background-image: -ms-linear-gradient(#444, #111);
    background-image: linear-gradient(#444, #111);
    -moz-box-shadow: 0 1px 1px #777, 0 1px 0 #666 inset;
    -webkit-box-shadow: 0 1px 1px #777, 0 1px 0 #666 inset;
    box-shadow: 0 1px 1px #777, 0 1px 0 #666 inset;
}

#menu_nav:before,
#menu_nav:after {
    content: "";
    display: table;
}

#menu_nav:after {
    clear: both;
}

#menu_nav {
    transform-origin: 0 0;
}

#menu_nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
    z-index: 1000;
}

.menuItemLvl2 {
    float: left;
    border-right: 1px solid #222;
    -moz-box-shadow: 1px 0 0 #444;
    -webkit-box-shadow: 1px 0 0 #444;
    box-shadow: 1px 0 0 #444;
    position: relative;
    z-index: 1000;
}

.menuItemLvl2 a {
    float: left;
    padding: 12px 30px;
    color: #999;
    text-transform: uppercase;
    font: bold 12px Arial, Helvetica;
    text-decoration: none;
    text-shadow: 0 1px 0 #000;
    cursor: pointer;
}

#menu_nav li:hover > a {
    color: #fafafa;
}



#menu_nav ul ul {
    position: absolute;
    opacity: 0; /* По умолчанию скрываем подменю */
    visibility: hidden;
    transition-property: opacity, visibility; /* Важно чтобы transition применялось к обоим свойствам */
    transition-duration: 0.2s; /* Добавляем анимацию 0.3 сек. */
    transition-delay: 0.35s; /* Добавляем задержку в 0.15 сек. */
    left: 0;
    z-index: 1;
    background: #444;
    background: -moz-linear-gradient(#444, #111);
    background-image: -webkit-gradient(linear, left top, left bottom, from(#444), to(#111));
    background: -webkit-linear-gradient(#444, #111);
    background: -o-linear-gradient(#444, #111);
    background: -ms-linear-gradient(#444, #111);
    background: linear-gradient(#444, #111);
    -moz-box-shadow: 0 -1px rgba(255,255,255,.3);
    -webkit-box-shadow: 0 -1px 0 rgba(255,255,255,.3);
    box-shadow: 0 -1px 0 rgba(255,255,255,.3);
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    border-radius: 3px;
}

#menu_nav li:hover > ul {
    opacity: 1;
    visibility: visible;
    margin: 0;
}

#menu_nav ul ul {
    top: 38px;
    margin: 0 0 0 20px;
    -moz-box-shadow: -1px 0 0 rgba(255,255,255,.3);
    -webkit-box-shadow: -1px 0 0 rgba(255,255,255,.3);
    box-shadow: -1px 0 0 rgba(255,255,255,.3);
    max-height: 80vh;
    overflow-y: auto;
}

#menu_nav ul ul li {
    float: none;
    display: block;
    border: 0;
    -moz-box-shadow: 0 1px 0 #111, 0 2px 0 #666;
    -webkit-box-shadow: 0 1px 0 #111, 0 2px 0 #666;
    box-shadow: 0 1px 0 #111, 0 2px 0 #666;
}

#menu_nav ul ul li:last-child {
    -moz-box-shadow: none;
    -webkit-box-shadow: none;
    box-shadow: none;
}

#menu_nav ul ul a {
    padding: 10px;
    width: 250px;
    display: block;
    white-space: nowrap; /* Запрещаем перенос строк */
    overflow: hidden; /* Обрезаем все, что не помещается в область */
    text-overflow: ellipsis;
    float: none;
    text-transform: none;
}

#menu_nav ul ul a:hover {
    background-color: #0186ba;
    background-image: -moz-linear-gradient(#04acec,  #0186ba);
    background-image: -webkit-gradient(linear, left top, left bottom, from(#04acec), to(#0186ba));
    background-image: -webkit-linear-gradient(#04acec, #0186ba);
    background-image: -o-linear-gradient(#04acec, #0186ba);
    background-image: -ms-linear-gradient(#04acec, #0186ba);
    background-image: linear-gradient(#04acec, #0186ba);
}

#menu_nav ul ul li:first-child > a {
    -moz-border-radius: 3px 3px 0 0;
    -webkit-border-radius: 3px 3px 0 0;
    border-radius: 3px 3px 0 0;
}

#menu_nav ul ul li:first-child > a:after {
    content: '';
    position: absolute;
    left: 40px;
    top: -6px;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid #444;
}