How to adjust the padding of dash datepicker to match the style of Dropdown?

I would like the Datepicker and the Dropdown to have the same height. How do I edit the CSS to match the style?. After I inspected the page, I found the class that I need to update, but the changes are not reflected in the page.

my CSS file in the assets folder:
.DateInput_input {

my dash code:

min_date_allowed=dt(1995, 8, 5),
max_date_allowed=dt(2017, 9, 19),
initial_visible_month=dt(2017, 8, 5),
end_date=dt(2017, 8, 25).date())

I have the same exact question