Edit in JSFiddle

(function ($) {
    
    $.widget("ui.esParrafo",{
        
        //Opciones del componente.
        options:{
            fechas:'',
            titulo:'',
            contenido:''
        },
                
        //Constructor del Elementos.
        _create : function(){
            var $this = this;
            var $thisElement = $(this.element).attr('id',$this.widgetName).addClass('esParrafo_contenendor');               
            var $encabezado = $('<div>').addClass('esParrafo_encabezado').addClass('gradientegris');
            var $fechas= $('<div>').addClass('esParrafo_fechas ').addClass('backgradiente').append($this.options.fechas);
            var $titulo= $('<div>').addClass('esParrafo_titulo').addClass('gradientegris').append($this.options.titulo);
            var $mostrar = $('<div>').addClass('esParrafo_muestra').append('-');
            var $cuerpo = $('<div>').addClass('esParrafo_cuerpo').append($this.options.contenido);
            
            $encabezado.append($fechas);
            $encabezado.append($titulo);
            $encabezado.append($mostrar);
            
            $thisElement.append($encabezado);
            $thisElement.append($cuerpo)
        } 
    });
    
})(jQuery);


    
var $parrafo = $('<div>').esParrafo({
    fechas:'',
    titulo:'titulo del parrafo',
    contenido:'Contenido del  parrafo'
});

$('#principal').append($parrafo);

<div id="principal">

</div>

body {
  font-family: 'Lucida Grande', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  padding: 100px;
  font-size: 13px;
}

div{
  font-family: 'Lucida Grande', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.esParrafo_contenendor {
  background: #fff;
  margin: 3 auto;
  width: 400px;
  padding: 5px;
  /* border-radius */
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  /* box-shadow */
  -webkit-box-shadow: rgba(0,0,0,0.2) 0px 1px 3px;
  -moz-box-shadow: rgba(0,0,0,0.2) 0px 1px 3px;
  box-shadow: rgba(0,0,0,0.2) 0px 1px 3px;
  
}

.esParrafo_encabezado{
  display: inline-block;
  background:#f2f2f2;
  width:100%;
  color:#fff;
  font-size: 14px;
  font-weight:bold;
   /* border-radius */
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  /* box-shadow */
  -webkit-box-shadow: rgba(0,0,0,0.2) 0px 1px 3px;
  -moz-box-shadow: rgba(0,0,0,0.2) 0px 1px 3px;
  box-shadow: rgba(0,0,0,0.2) 0px 1px 3px;
}

.esParrafo_muestra{
  display: inline-block;
  float:right;
  padding:5px 10px;
  margin:2px 3px;
}

.esParrafo_muestra:hover{
  background:#fff;
    color:#999;
}

.esParrafo_cuerpo{
  display: inline-block;
  padding:10px;
  font-size: 11px;
  color:#666;
}

.esParrafo_fechas{
  display: inline-block;
  padding:7px;
  width:60px;
  text-align:right;
}

.esParrafo_titulo{
  display: inline-block;
  padding:7px;
}

.backgradiente{
  background: #ffc578; /* Old browsers */
/* IE9 SVG, needs conditional override of 'filter' to 'none' */
background: url(data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiA/Pgo8c3ZnIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgdmlld0JveD0iMCAwIDEgMSIgcHJlc2VydmVBc3BlY3RSYXRpbz0ibm9uZSI+CiAgPGxpbmVhckdyYWRpZW50IGlkPSJncmFkLXVjZ2ctZ2VuZXJhdGVkIiBncmFkaWVudFVuaXRzPSJ1c2VyU3BhY2VPblVzZSIgeDE9IjAlIiB5MT0iMCUiIHgyPSIwJSIgeTI9IjEwMCUiPgogICAgPHN0b3Agb2Zmc2V0PSIwJSIgc3RvcC1jb2xvcj0iI2ZmYzU3OCIgc3RvcC1vcGFjaXR5PSIxIi8+CiAgICA8c3RvcCBvZmZzZXQ9IjEwMCUiIHN0b3AtY29sb3I9IiNmYjlkMjMiIHN0b3Atb3BhY2l0eT0iMSIvPgogIDwvbGluZWFyR3JhZGllbnQ+CiAgPHJlY3QgeD0iMCIgeT0iMCIgd2lkdGg9IjEiIGhlaWdodD0iMSIgZmlsbD0idXJsKCNncmFkLXVjZ2ctZ2VuZXJhdGVkKSIgLz4KPC9zdmc+);
background: -moz-linear-gradient(top,  #ffc578 0%, #fb9d23 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#ffc578), color-stop(100%,#fb9d23)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  #ffc578 0%,#fb9d23 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  #ffc578 0%,#fb9d23 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  #ffc578 0%,#fb9d23 100%); /* IE10+ */
background: linear-gradient(top,  #ffc578 0%,#fb9d23 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffc578', endColorstr='#fb9d23',GradientType=0 ); /* IE6-8 */

}

.gradientegris{
  background: #e2e2e2; /* Old browsers */
/* IE9 SVG, needs conditional override of 'filter' to 'none' */
background: url(data:image/svg+xml;base64,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);
background: -moz-linear-gradient(top,  #e2e2e2 0%, #dbdbdb 50%, #d1d1d1 51%, #fefefe 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#e2e2e2), color-stop(50%,#dbdbdb), color-stop(51%,#d1d1d1), color-stop(100%,#fefefe)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  #e2e2e2 0%,#dbdbdb 50%,#d1d1d1 51%,#fefefe 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  #e2e2e2 0%,#dbdbdb 50%,#d1d1d1 51%,#fefefe 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  #e2e2e2 0%,#dbdbdb 50%,#d1d1d1 51%,#fefefe 100%); /* IE10+ */
background: linear-gradient(top,  #e2e2e2 0%,#dbdbdb 50%,#d1d1d1 51%,#fefefe 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#e2e2e2', endColorstr='#fefefe',GradientType=0 ); /* IE6-8 */

}