body {
  background: #FFF;
} 

#portada {
  width: 1000px;
  height: 700px;
  margin-right: auto;
  margin-left: auto;
  background: url("../images/portada.jpg") no-repeat;
  margin-top: 0px;
  border: 0px;
  padding: 0px;
}

#mariposa {
  width: 284px;
  float: left;
  height: 200px;
  border: 0px;
  padding: 0px;
  position: absolute;
  margin: 177px 0px 0px 595px;
  outline: none;
}

#mariposa img {
  border: 0px;
  margin: 0px;
  padding: 0px;
}

#logo {
  width: 284px;
  float: left;
  height: 160px;
  border: 0px;
  position: absolute;
  padding: 0px;
  margin: 295px 0px 0px 215px;
  outline: none;
}

#logo img {
  border: 0px;
  margin: 0px;
  padding: 0px;
}