#boton{

    

    

    width: 40px;
    

    cursor: pointer;

    margin-top: 150px;

    margin-bottom: 10px;

    

    z-index: 9001;
    right: 0;
    position: fixed;
  transition-delay: .4s;

}

.boton_mostrar {
  float:right;
  font-size:12px;
  line-height:20px;
  transition-delay: .4s;
  
}

#contenido{
    padding: 100px;
  width: 300px;

  margin-top: 195px;
  margin: right;
  clear:both;
  border-radius: 10px;
  background: rgba(0, 0, 0, .9);

  padding:5px;
  display: none;
  overflow:auto;
  
  position: fixed;
  z-index: 9001;
    right: 0;
    transition: height .4s;
}

.segui{
    
    margin: 0 auto;
    padding: 0 0 0 35px;
}

#boton:hover{

    opacity: .8;

}



#caja{

    width: 300px;

    margin-top: 180px;
    margin: right;

    height: 0px;
border-radius: 5px;
    background: #000;
    
z-index: 9001;
    right: 0;
    
    

    transition: height .4s;

}

#

#boton:hover{

    opacity: .8;

}
#boton:hover + #caja + #popup2{

    height: 100px;

}