How to remove border of the asp.net radio button - html

Question

I have a radio button like below, and i am unable to delete the border of that radio button in IE. The same is working in Chrome.
<fieldset id="fsdeSign">
<table width="98%">
<tr>
<td align="right" colspan="2">
<div id="divName" runat="server" visible="false">
<span>
<label class="required" runat="server" id="Label1" style="width: 90px">
<span id="NameSpan" runat="server">*</span>Name</label></span>
<asp:TextBox ID="textName" runat="server" MaxLength="20"></asp:TextBox>
</div>
</td>
<td align="right">
<asp:Label ID="lblaccount" Style="display: none" runat="server" Width="155px"
Text="Would you like to use your account?"></asp:Label>
</td>
<td align="left">
<asp:RadioButtonList ID="rblaccount" runat="server" Style="display: none;border-style:none;" RepeatDirection="Horizontal">
<asp:ListItem Value="Yes" Text="Yes" />
<asp:ListItem Value="No" Text="No" Selected="True" />
</asp:RadioButtonList>
</td>
</tr>
</table>
</fieldset>
I have used the below cssclass="Sign" which is not reflecting.Do i need add any more tags?
fieldset#fseSign input.Sign
{
border-style:none;
}

Answer 1

Try to add BorderStyle="None" within <asp: RadioButtonList>. Your code should look like this:
<asp:RadioButtonList ID="rblaccount" runat="server" Style="display: none" RepeatDirection="Horizontal" BorderStyle="None">
<asp:ListItem Value="Yes" Text="Yes" />
<asp:ListItem Value="No" Text="No" Selected="True" />
</asp:RadioButtonList>
In any case, try to have a look at this similar case here.
In case it does not work, it is also possible that you have to edit its css in the following way:
input[type="radio"] {
border-style:none;
}

Answer 2

Try this fieldset#fsdeSign input
{border-style: none;}