* {margin: 0;
    padding:0;}

body { background-color: #none;
    font-family: arial;}


#pagina { width: 960px;
    margin: 0 auto 0 auto;}


header {background-color: #fff; 
    width: 100%;
    height: 120px;
    /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#e2e2e2+0,131313+100 */
background: #e2e2e2; /* Old browsers */
background: -moz-linear-gradient(-45deg,  #e2e2e2 0%, #131313 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right bottom, color-stop(0%,#e2e2e2), color-stop(100%,#131313)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(-45deg,  #e2e2e2 0%,#131313 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(-45deg,  #e2e2e2 0%,#131313 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(-45deg,  #e2e2e2 0%,#131313 100%); /* IE10+ */
background: linear-gradient(135deg,  #e2e2e2 0%,#131313 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#e2e2e2', endColorstr='#131313',GradientType=1 ); /* IE6-9 fallback on horizontal gradient */

}


header h1 { margin: 10 0 0 10;
    padding-top: 40px;
    color: white;
}


nav { background: #fff;
    float: right;
   margin-right: 20px;
    }


nav ul { list-style-type: none;}

nav ul li { display: inline;}


nav ul li a {  color: black;
    text-decoration: none;
    margin:  argin-left: 10px;
    margin-right: 10px;}

nav ul li a:hover {  color: #000; }

main {width: 100%;}

section {background-color: white);
    width: 100%;
    min-height: 700px;
     padding-top: 20px;
    padding-bottom: 30px;
    margin-top: 20px;
    margin-bottom: 20px;}

.primer {width: 96%;
    position: relative;
    min-height: 150px;
    background: white;}


.primer p {padding: 0px;
    margin: 0px;}

.primer h2 { margin: 0 0 15 0;} 

#foto {float: right;
    position: absolute;
    top: 0px;
    right: 10px;
    overflow: hidden;
  }

article {width: 25%;
    padding: 2%;
    margin: 2%;
    position: relative;
    float: left;
    box-sizing: border-box;}

article p { padding: 7px;
    margin: 2px;}

footer {width: 100%;
    text-align: center;
    font-size: 12px;}