Can we call more then one CSS class on any controls?

<style type="text/css">

        .border_color 

         {

            border-color:yellow !important;         

         }

        .font_bold 

         {

            font-weight:bold !important;

            color:blue;

         }

    </style>



<asp:Button ID="btn_save" runat="server" Text="Save" CssClass="border_color font_bold" />

<asp:TextBox ID="txt_name" runat="server" CssClass="font_bold border_color"></asp:TextBox>