how to remove the space between company and country?
<div class="container-fluid">
<section class="container">
<div class="row">
<div class="col-md-12">
<h3 style="color:#fc2630;font-size:14px;padding-bottom:15px;">Please Submit Catalogue Details :</h3>
<div class="form-group col-md-6">
<asp:Label ID="lblCompany" runat="server" Text="Company" ></asp:Label><br />
<asp:TextBox ID="txtCompany" runat="server" CssClass="form-control" style="height:90%;width:90%;"></asp:TextBox>
</div>
<div class="form-group col-md-6">
<asp:Label ID="Label2" runat="server" Text="City" ></asp:Label><br />
<asp:TextBox ID="txtCity" runat="server" CssClass="form-control" style="height:90%;width:90%;"></asp:TextBox><br/>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" ForeColor="Red" ControlToValidate="txtCity" runat="server" ErrorMessage="city please!!"></asp:RequiredFieldValidator>
</div>
</div>
<div class="col-md-12">
<div class="form-group col-md-6">
<asp:Label ID="lblCountry" runat="server" Text="Country" ></asp:Label><br />
<asp:DropDownList ID="lstCountries" runat="server" CssClass="form-control" style="width:90%;height:90%;"></asp:DropDownList>
<div>
<asp:CustomValidator ID="CustomValidator10" runat="server"
ControlToValidate="lstCountries" ForeColor="Red"
ValidateEmptyText="True"></asp:CustomValidator>
</div>
</div>
<div class="form-group col-md-6">
<asp:Label ID="Label24" runat="server" Text="Telephone( Country Code/Area Code)" ></asp:Label>
<asp:TextBox ID="txtTelephone" runat="server" CssClass="form-control" style="height:90%;width:90%;"></asp:TextBox>
</div>
</div>
</div>
</section>
</div>
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