.dropdown:hover .dropdown-menu {
    display: block;
    margin-top: 0;
}

select {
    border: none;
    border-bottom-style: solid;
    border-bottom-width: 1px;
    border-color: #ced4da;
    padding-bottom: 10px;
    padding-top: 10px;
    font-size: 1rem;
    color: #757575;
    margin-bottom: 8px;
    width: 100%;
}

    select :focus {
        outline: none;
        border-bottom-style: solid;
        border-bottom-width: 1px;
        border-color: #ced4da;
    }

        select :focus opton {
            outline: none;
            border-bottom-style: solid;
            border-bottom-width: 1px;
            border-color: #ced4da;
        }

.asnGrid {
    height: 300px;
    overflow-y: auto;
}