.contenidoresultado{
  overflow-y: scroll;
  height: 900px;
  width: 1300px;
}

button.accordion {
    color: #444;
    cursor: pointer;
    padding: 18px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 20px;
    transition: 1s;
}

button.accordion.active, button.accordion:hover {
  background: #337ab7;
  color: black;
  -webkit-transition: background-color 100ms linear;
     -ms-transition: background-color 100ms linear;
     transition: background-color 100ms linear;

}

div.panel {
    padding: 0 18px;
    display: none;
}
.panel{
  background: none;
  font-size: 20px;
  text-align: center;
  
}