How to break the long word in all browsers

Question

hi every one i have a text without  spaces .how can i break this.

like 

<asp:Label ID="lblFirstNameValue" runat="server" text="dssdsddddddddddddddddddddddddddddddddddddddddddrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrddfdfdfdfdfdfdfdfdfdff" width="200"></asp:Label>
thanks in advanced