.top-menu__item_dropdown {
    position: relative;
    transition: color .2s ease-in-out;
}

.top-menu__item_dropdown:hover > .top-menu__link {
    color: #FF9501;
}

.top-menu__item_dropdown:hover .menu-dropdown {
    opacity: 1;
    visibility: visible;
    height: auto;
}

.top-menu__item_dropdown {
    position: relative;
}

.menu-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    width: auto;
    min-width: 100%;
    z-index: 999;
    list-style-type: none;
    padding: 0;
    opacity: 0;
    visibility: hidden;
    height: 0;
    overflow: hidden;
    transition: all .2s ease-in-out;
    text-align: left;
    -moz-text-align-last: left;
    -webkit-text-align-last: left;
    text-align-last: left;
}

.menu-dropdown__item {
    padding: 10px 20px;
    line-height: 1;
    background: #FFFFFF;
    border-top: 1px solid #D4D4D4;
    transition: all .2s ease-in-out;
}

.menu-dropdown__item:first-child {
    border-top: 0;
}

.menu-dropdown__item:hover {
    background: #FF9501;
}

.menu-dropdown__item:hover .menu-dropdown__link {
    color: #FFFFFF;
}

.menu-dropdown__link {
    font-family: 'Ubuntu', sans-serif;
    font-style: normal;
    font-weight: 400;
    font-size: 16px;
    line-height: 30px;
    color: #000000;
    text-decoration: none;
    transition: all .2s ease-in-out;
}