

html, body {
  margin: 0;
  padding: 0;
  font-size: 10px;
  background-color: #fff;
}
body {
   background: none;
}

.btn-volver{
  text-align: center;
  display: block;
  margin:0;
  padding:1.5rem;
  position:absolute;
  left:0px;
  right: 0px;
  bottom:0;
 
}

#alarma-image{
  margin-top:4rem;
  width: 70%;
}