body {
    margin: 0;
    padding: 0;
    background-image: url(image/ciudad-3-e1565900111723.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
    opacity: 0.9;
    position: relative;
    animation: aparecerDesdeIzquierda 1s ease-out forwards;
}

.menu {
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 2px -2px rgb(238, 220, 220);
    position: sticky;
    top: 0;
    background-color: rgb(252, 252, 252);
    padding: 3px;
}

#logo {
    width: 50px;
    height: 50px;
    margin: 3px;
}

.titulo {
    font-size: 25px;
    color: #000;
    margin-right: auto;

}

.inicio,
.contactos,
.descripcion {
    font-size: 25px;
    color: #000;
    cursor: pointer;
    margin: 13px;
}

a {
    text-decoration: none;
    color: #000;

}

#rectificador {
    width: 100%;
}

#descripcion {
    margin: 5%;
    background-color: rgb(119, 112, 112);
    border-radius: 8%;
    font-size: 20px;
    font-family: cursive;
    padding: 2%;
    color: #000000;
    text-align: justify;
}

.final {
    text-align: center;
    font-size: 25px;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    padding: 2%;
    background-color: rgba(90, 85, 81, 0.507);
    box-shadow: 1px 1px 50px rgb(176, 185, 47);
}

#btn-mas {
    display: none;
}

.container {
    position: fixed;
    bottom: 20px;
    right: 20px;
}

.redes a,
.btn-mas label {
    display: block;
    text-decoration: none;
    color: #fff;
    width: 50px;
    height: 50px;
    line-height: 55px;
    text-align: center;
    border-radius: 50%;
    box-shadow: 0px 1px 10px rgba(0, 0, 0, 0.4);
    transition: all 500ms ease;
}

.fa-fa-facebook {
    background-image: url(image/images.png);
    background-size: contain;
}

.fa-fa-whatsapp {
    background-image: url(image/whatsapp_logo_icon_186881.png);
    background-size: contain;
}

.redes a {
    margin-bottom: -15px;
    opacity: 0;
    visibility: hidden;
}

#btn-mas:checked~.redes a {
    margin-bottom: 10px;
    opacity: 1;
    visibility: visible;
}

.btn-mas label {
    cursor: pointer;
    background-image: url(image/63404071-positive-symbol-plus-sign-white-icon-on-red-circle.jpg);
    background-size: contain;
}

#btn-mas:checked~.btn-mas label {
    transform: rotate(135deg);
    font-size: 25px;
}
   @media (max-width: 768px) {
     .menu {
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 2px -2px rgb(238, 220, 220);
    position: sticky;
    top: 0;
    background-color: rgb(252, 252, 252);
    padding: 3px;
    text-align: center;
}

#logo {
    width: 100px;
    height: 100px;
    margin: 3px;
}

.titulo {
    font-size: 50px;
    color: #000;
    margin: 0 auto;
}

.inicio,
.contactos,
.descripcion {
    font-size: 0px;
}

a {
    text-decoration: none;
    color: #000;

}

#rectificador {
    width: 100%;
}

#descripcion {
    margin: 5%;
    background-color: rgb(119, 112, 112);
    border-radius: 8%;
    font-size: 20px;
    font-family: cursive;
    padding: 2%;
    color: #000000;
    text-align: justify;
}

.final {
    text-align: center;
    font-size: 25px;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    padding: 2%;
    background-color: rgba(90, 85, 81, 0.507);
    box-shadow: 1px 1px 50px rgb(176, 185, 47);
}
   }
@media (max-width: 480px) {

.titulo {
    font-size: 25px;
    color: #000;
    margin: 0 auto;
    }
#descripcion {
    margin: 5%;
    background-color: rgb(119, 112, 112);
    border-radius: 8%;
    font-size: 10px;
    font-family: cursive;
    padding: 2%;
    color: #000000;
    text-align: justify;
}

.final {
    text-align: center;
    font-size: 13px;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    padding: 2%;
    background-color: rgba(90, 85, 81, 0.507);
    box-shadow: 1px 1px 50px rgb(176, 185, 47);
}
    }
@keyframes aparecerDesdeIzquierda {
  from {
    left: -100px;
    opacity: 0;
  }
  to {
    left: 0;
    opacity: 1;
  }
}