ASP Checkbox long text is not aligned

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I am using a checkbox in which the text is long. I would like to make the text in both lines aligned. That is, in both lines the text should start at the same line.

<asp:CheckBox ID="cb1" Width="400px" runat="server" OnCheckedChanged="cb1_CheckedChanged"
                                        AutoPostBack="true" Text="This is very long This is very long This is very long This is very long This is very long This is very long" Value="cb1" />