<asp:textbox runat="server" id="txt" onfocus="if (this.value == 'User Name') this.value = '';" onblur="if (this.value == '') this.value = 'User Name';" value="User Name" style="border-top-left-radius: 20px; border-top-right-radius: 20px;border-bottom-left-radius: 20px;border-bottom-right-radius: 20px; color:Gray; text-align:center;" xmlns:asp="#unknown"></asp:textbox>