.nav{
    position: fixed;
    top: 0;
    background-color: rgba(0, 0, 0, 0.579) ;
    width:100%;
    height: 4rem;
    padding: 4px;
   
}

ul{
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    color: white;
    width: 100%;
    list-style: none;
    margin: none;
    padding: 0;
    max-width: 80%;
    margin: auto;
}

li{
    width: auto;
    font-size: 0.7rem;
   
}
li:hover{
    color: #f8c85a;
}

a{
    text-decoration: none;
    color: white;
}

.logo{
    width: auto;
    height: 3rem;
}

.btn{
    background-color: antiquewhite;
    position: absolute;
    left: 70%;
    margin: auto;
   
}
.portada_imagen{
    margin-top: 0rem;
    max-width: 80%;
    margin: auto;
}

.link-mas{
    color: black;
}
@media (max-width:390px){
    .logo{
    height: 2rem}

    
}

@media (max-width: 700px){

    .portada_imagen{
        max-width: 100%;
        margin: 0;
        padding: none;
     };
ul{ max-width: 100%;};

    }