Mine

<?xml version="1.0" encoding="ISO-8859-1"?>
<StyledLayerDescriptor version="1.0.0"
    xsi:schemaLocation="http://www.opengis.net/sld StyledLayerDescriptor.xsd"
    xmlns="http://www.opengis.net/sld"
    xmlns:ogc="http://www.opengis.net/ogc"
    xmlns:xlink="http://www.w3.org/1999/xlink"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <!-- a named layer is the basic building block of an sld document -->

  <NamedLayer>
    <Name>ciudades</Name>
    <UserStyle>
      <FeatureTypeStyle>
        <Rule>
          <Name>Rule 1</Name>
          <Title>RedSquare</Title>
          <Abstract>A red fill with an 11 pixel size</Abstract>
           <MaxScaleDenominator>2000000</MaxScaleDenominator> 
          <PointSymbolizer>
    <Graphic>
      <Mark>
        <WellKnownName>circle</WellKnownName>
      <Fill>
        <CssParameter name="fill">#cAcAcA</CssParameter>
      </Fill>
      </Mark>
      <Size>5.0</Size>
    </Graphic>
          </PointSymbolizer>
                                 <TextSymbolizer>
                                         <Label>
                                                 <ogc:PropertyName>nombre</ogc:PropertyName>
                                         </Label>
 
                                         <Font>
                                                 <CssParameter name="font-family">Lucida Sans</CssParameter>
                                                 <CssParameter name="font-style">Normal</CssParameter>
                                                 <CssParameter name="font-size">8</CssParameter>
                                                 <CssParameter name="font-weight">Regular</CssParameter>
                                         </Font>


                                         <Fill>
                                                 <CssParameter name="fill">#000000</CssParameter>
                                                 <CssParameter name="fill-opacity">1.0</CssParameter>
                                         </Fill>

                                 </TextSymbolizer>
        </Rule>

        </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
</StyledLayerDescriptor>