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codigomaster 

// Add Shortcode
function custom_shortcode( $atts ) {

	// Attributes
	$atts = shortcode_atts(
		array(
			'codigomastercss' => '',
		),
		$atts,
		'codigomaster'
	);

	<html lang="es">
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>Solapas con JQuery</title>
	<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
	<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
	<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
	<script>
	  $( function() {
	    $( "#grupoTablas" ).tabs();
	  } );
	</script>
	</head>
	<body>
	 
	<div id="grupoTablas">
	  <ul>
	    <li><a href="#tab-1">Solapa 1</a></li>
	    <li><a href="#tab-2">Solapa 2</a></li>
	    <li><a href="#tab-3">Solapa 3</a></li>
	  </ul>
	  <div id="tab-1">
	    <p>Contenido 1.</p>
	  </div>
	  <div id="tab-2">
	    <p>Contenido 2.</p>
	  </div>
	  <div id="tab-3">
	    <b>[contact-form-7 id="1233" title="test"]</b>
	  </div>
	</div>
	 
	</body>
	</html>

}
add_shortcode( 'codigomaster', 'custom_shortcode' );