body {
   font-family: Georgia, serif;
   background-color: #FFFFFF;
   background-image:url("3.jpg")
}

.caja {
      margin-left:15%;
      margin-right:15%;
      padding:2%;
      background-color:#ffffff;

}


header {
   font-size: 2em;
   font-family: oblique 120% sans-serif bold;
  /* bold deberķa estar al principio */;
   color: #F010000;
   background-color: #00FF26;
   text-align: center;
}

p {
   text-align: justify;
}
 
  article h2{
   text-aling:center;
}

section {
   background-color: #FFFFFF;
}


 
 section h2{
   text-aling:center;
}




/* propaganda:aside*/
aside{
width:23%;
float:right;
margin-left:05em;