.typeahead.dropdown-menu {
    max-height: 150px;
    max-width: 440px;
    overflow-y: auto;
}
.scrollbar {
    margin-left: 30px;
    float: left;
    height: 300px;
    width: 65px;
    background: #F5F5F5;
    overflow-y: scroll;
    margin-bottom: 25px;
}
.force-overflow {
    min-height: 450px;
}
.typeahead.dropdown-menu::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    background-color: #F5F5F5;
}
.typeahead.dropdown-menu::-webkit-scrollbar {
    width: 6px;
    background-color: #F5F5F5;
}
.typeahead.dropdown-menu::-webkit-scrollbar-thumb {
    background-color: #000000;
}