::-moz-selection { /* Code for Firefox */
  color: white;
  background: black;
}

::selection {
  color: white;
  background: black;
}
    #b1, #b2, #b3{
         color: black;
         position:fixed;
         top:85px;
     }
     #b1{left:200px;}
     #b2{left:400px;}
     #b3{left:600px;}
        /* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
        #map {
            height: 20em;
            width: 100%;
            display: grid;
            grid-area: mapa;
        }
        #insta{
            color: black;
            margin:0px;
            top:0px;
            left:0px;
        }