img[usemap] {
    border: none;
    height: auto;
    max-width: 100%;
    width: auto;
  }

/* Imágenes responsive */
.responsive {
    width: 20%;
    height: auto;
  }
  
img {
  height: auto;
  width: 80%;
  margin: auto;
  display: block;
  }


/* Responsive - Presentacion google drive */
.responsive-google-slides {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Ratio */
  height: 0;
  overflow: hidden;
}
.responsive-google-slides iframe {
  border: 0;
  position: absolute;
  top: 0;
  left: 0;
  width: 100% !important;
  height: 100% !important;
}

small {
  font-size: .7em
}