If you find that you have given border, color, margin, padding or any other style to any html element but its in-affetcive i.e. you cant notice the change you want to, then simply add !important infront of that particular property e.g.
border:1px solid red !important;
padding-top:12px !important; and so on
So if you find that any styling property is quite remind it that you are not important 😉