HTML - Activar tab o etiqueta especifica con el menú interno.

<div class="row allcontent">&nbsp;<div class="col-md-10 col-md-push-2 maincontent">&nbsp;<div class="tabs">&nbsp;<input name="tabs" id="tab1" checked="" type="radio">&nbsp;<label for="tab1"><a name="INFO"></a>INFORMACIÓN</label>&nbsp;<input name="tabs" id="tab2" type="radio">&nbsp;<label for="tab2"><span>PAGOS</span></label>&nbsp;<input name="tabs" id="tab3" type="radio">&nbsp;<label for="tab3"><span>ENVÍOS</span></label>&nbsp;<input name="tabs" id="tab4" type="radio">&nbsp;<label for="tab4"><span>DEVOLUCIONES</span></label>&nbsp;<div id="tab-content1" class="tab-content">&nbsp;<div class="row">&nbsp;<div class="col-sm-6"></div>

<div class="col-md-12"><br>

<h1>Info</h1>&nbsp;<br>

<p style="font-size:18px;&nbsp;font-weight:bold;">If you have any questions or doubts about this template meets or complies with the new eBay guidelines 2017, please do not hesitate to contact us.</p>

<br>

<p>*** No script, no hassle ***</p>

<p>From spring 2017, eBay is going to ban Active Content, plug-ins and dynamic content in the item description. This template is prepared for the change. This template does not contain any Active Content, plug-ins and dynamic content.</p>

<br>

<h1>Features of this listing template:</h1>

<ul>

<li><strong>Responsive Design</strong>&nbsp;(Mobile, Tablet &&nbsp;<b>eBay App</b>&nbsp;optimized)</li>

<li>Template can be used to<b>&nbsp;list any type of products</b></li>

<li>Template&nbsp;<b>can be used with or without subscription to eBay Shop/Store</b></li>

<li>Maximum 4 images in the Image Gallery</li>

<li>Completely&nbsp;<strong>Flexible</strong>&nbsp;&&nbsp;<strong>Editable</strong></li>

<li>Shop categories (<strong>NOT dynamic/automatic</strong>)</li>

<li>100% eBay Policy Violation Free</li>

<li>Template is compatible with All Desktop Browsers and Mobile Browsers</li>

</ul>

<br>

<h1>The following services we carry out free of charge:</h1>

<p class="text-left"><i class="fa fa-check-square-o"></i>&nbsp;Add your logo into the template</p>

</div>

</div>&nbsp;</div>

<div id="tab-content2" class="tab-content"><div class="box-one">

<p>SECURE PAYMENTS</p>

<p>We accept payments by Paypal Bank Transfer, UK Cheque.</p>

<img src="http://pearbrand.eu/ebay-shops/EN/2/7/template/img/payment-icons.png">&nbsp;</div>

<br>

<h1>Payment Information</h1>

<p><span style="font-weight: 700;">*** If you are facing problems, we assure you that we will provide full assistance to resolve any problems you are facing. Simply send us a message through the eBay Messaging system.</span></p>

<p></p>

</div>

<div id="tab-content3" class="tab-content"><div class="box-one">

<p>DELIVERY</p>

<p>Fast & cheap</p>

<p>All of our items are packaged securely and shipped by one of the following methods:</p>

<img src="http://pearbrand.eu/ebay-shops/EN/2/7/template/img/delivery-icons.png">&nbsp;</div>

<br>

<h1>Shipping Information</h1>

<p>After payment you will receive the template files within 24 hours via email to your PayPal email address.</p>

<p>Complete Auction Template</p>

<p>Instructions file</p>

</div>

<div id="tab-content4" class="tab-content"><div class="box-one">

<p>DELIVERY</p>

<p>Fast & cheap</p>

<p>All of our items are packaged securely and shipped by one of the following methods:</p>

<img src="http://pearbrand.eu/ebay-shops/EN/2/7/template/img/delivery-icons.png">&nbsp;</div>

<br>

<h1>Returns Information</h1>

<p>Refund is only acceptable before we send out the files to you.</p>

<p><strong>*** If you are facing problems, we assure you that we will provide full assistance to resolve any problems you are facing. Simply send us a message through the eBay Messaging system.</strong></p>

</div>

<ul class="nav menu-tabs">

    <li><a href="#uno" data-toggle="tab">UNO</a></li>

    <li><a href="#dos" data-toggle="tab">DOS</a></li>

    <li><a href="#tres" data-toggle="tab">TRES</a></li>

</ul>

$(window).load(function(){

function activaTab(tab){

    $('.menu-tabs a[href="#' + tab + '"]').tab('show');

};

activaTab('dos'); //FOCUS EN CIERTO TAB

});

<input onclick="window.location='#extra'" name="tabs" id="tab5" class="extra" type="radio">

                           <label for="tab5"><span>Extra</span></label>

<div id="extra">YO SOY EL CONTENIDO INTERNO Y ME LLAMO "EXTRA"</div>

<!--<table style="tabla2" border-spacing:="" 0px;="" width:="" 100%;"="" align="center">-->

<table style="tabla2"  align="center">

<tr>

   <td>

      <div id="ds_div">

                          

         <span rwr="1" style="font-family: Arial; font-size: 14pt;">

            <div class="container-fluid bg" align="center">

               <div class="container" style="">

                  <div class="row allcontent" style="position: relative;">

                     <div class="col-md-10 col-md-push-2 maincontent" style="z-index: 2;">

                        <div class="tabs"><!-- MENU TABS -->

                           <input name="tabs" id="tab1" checked="" style="" type="radio">

                           <label for="tab1"><span>Descripción</span></label>

                           <input name="tabs" id="tab2" style="" type="radio">

                           <label for="tab2"><span>Pagos</span></label>

                           <input name="tabs" id="tab3" style="" type="radio">

                           <label for="tab3"><span>Envíos</span></label>

                           <input name="tabs" id="tab4" style="" type="radio">

                           <label for="tab4"><span>Devoluciones</span></label>

                           <!-- AÑADO UN NUEVO ELEMENTO Y USO onclick="window.location='#extra'"  -->

                           <input onclick="window.location='#extra'" name="tabs" id="tab5" class="extra" type="radio">

                           <label for="tab5"><span>Extra</span></label>

                           <div id="tab-content1" class="tab-content"><!-- tab-content1 -->

                              <div class="row">

                                 <div class="col-sm-6"></div>

                                 <div class="col-md-12">

                                    <br>

                                    <h1>Info</h1>

                                    <br>

                                    <p style="font-size:18px; font-weight:bold;">Estado del Artículo: Nuevo<br></p>

                                    <br>

                                    <p>Artículos importados de Alemania procedentes de embargos, lotes, subastas, sobreprodución, etc. Una buena oportunidad para adquirir artículos de muy alta calidad con descuentos de hasta un 70%. Todos nuestros artículos son revisados y embalados cuidadosamente por personal cualificado para garantizar que nuestros clientes reciben el artículo que han adquirido sin sorpresas desagradables. <br></p>

                                    <br>

                                    <h1>Clasificación de los Artículos:</h1>

                                    <ul>

                                       <li>Nuevos</li>

                                       <li>Nuevos con pequeñas taras<br></li>

                                       <li>Nuevos con embalaje ligeramente dañado<br></li>

                                       <li>Nuevos sin embalaje original<br></li>

                                       <li>Nuevos con embalaje abierto<strong></strong><strong></strong></li>

                                       <li>Artículos devueltos en tienda<strong><br>

                                          </strong>

                                       </li>

                                       <li>Artículos Usados<br></li>

                                       En cualquier caso, siempre indicaremos el estado del artículo en la descripción del mismo, por favor leea toda la información antes de realizar su compra. <br>

                                       <br>

                                       <br>

                                    </ul>

                                    <h1><br></h1>

                                 </div>

                              </div>

                           </div><!-- / tab-content1 -->

                           <div id="tab-content2" class="tab-content">

                              <br>

                              <h1>Payment Information</h1>

                              <p>We accept PayPal payment.</p>

                              <img src="http://www.web-marx.de/eBay/ZaVe-Icons/zahlung-paypal.jpg">

                           </div>

                           <div id="tab-content3" class="tab-content">

                              <br>

                              <h1>Shipping Information</h1>

                              <p>After payment you will receive the template files within 24 hours via email to your PayPal email address.</p>

                              <p>Complete Auction Template</p>

                              <p>Instructions file</p>

                           </div>

                           <div id="tab-content4" class="tab-content">

                              <br>

                              <h1>Returns Information</h1>

                              <p>Refund is only acceptable before we send out the files to you.</p>

                              <p><strong>*** If you are facing problems, we assure you that we will provide full assistance to resolve any problems you are facing. Simply send us a message through the eBay Messaging system.</strong></p>

                           </div>

                        </div>

                     </div><!-- / menu tabs -->

                     <div class="col-md-2 col-md-pull-10 sidebar">

                        <h2>Exceptional Service</h2>

                        <p><img src="https://s20.postimg.org/iqfm1shfx/money_back.png" style="width:100%;"></p>

                        <br>

                        <h2>Shipping</h2>

                        <p><img src="https://s20.postimg.org/3x5jurz2l/shipping1.png" style="width:100%;"></p>

                        <br>

                        <h2>Payment Methods</h2>

                        <p><img src="https://s20.postimg.org/iue0vscb1/paypal_logo.png" style="width:100%;"></p>

                     </div>

                  </div>

               </div>

            </div>

         </span>

      </div>

   </td>

</tr>

</table>

<div id="extra"><!-- AÑADIDA POR MI -->

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</div><!-- / AÑADIDA POR MI -->