.main-nav .dropdown-menu {
    display: none;
    position: absolute;
    background: #fff;
    border: 1px solid #ddd;
    min-width: 180px;
    z-index: 1000;
    padding: 5px 0;
    list-style: none;
}
.main-nav .dropdown.open .dropdown-menu {
    display: block;
}
.main-nav .dropdown {
    position: relative;
}
.main-nav .dropdown-menu li a {
    display: block;
    padding: 5px 10px;
    color: #333;
    text-decoration: none;
    font-size: 16px;
}
.main-nav .dropdown > a {
    padding-right: 0px !important;
    margin-right: 0 !important;
}

.main-nav .dropdown .caret {
    margin-left: 2px;
}
.main-nav .dropdown-menu li a:hover {
    background: #f5f5f5;
}