@charset "utf-8";

* {
    margin: 0;
    padding:  0;
    box-sizing: border-box;
}

.texto
nav { background-color:rgb(134, 187, 216);
    list-style: none;
    justify-content: center;
    align-content: center;
    text-align: center;
    font-size: 1em;
    margin: 1em;
    padding: .5em;
    }
<p class="texto">
.nav_links { display: inline-block;
    align-items: center;
    text-decoration: none;   
    }
<p class="texto">
.nav_links :hover{ display: inline-block;
    align-items: center;
    text-decoration: none;   
    background: #8a8686;  
    }
<p class="texto">
.nav_links a{ color: rgb(51, 101, 138);
    text-decoration: none;
    margin: 1.5em;
    }
<p class="texto">
h1{ font-family:"Montserrat";
    color:floralwhite ;
    margin: 1em;
    padding: 0em;
    font-size: 3em;
    line-height: 1em;
    text-align: center;
    background-color:rgb(51, 101, 138)  
   
}

div class="mobile"{ 

        
    }
div class="tablet"{ 
        }

div class="escritorio"{ display: flex;
    flex-direction: column;
    }

article{margin: .10em auto;
    text-align: center;
    max-width: 25em
                }

.perfil img{ display: inline;
    align-items: center;
    width: 50%;
            }

 


main{ 
    font-family:"Raleway";
    color: rgb(51, 101, 138);
    margin: 3em;
    padding: 2em;
    font-size: 1em;
     background-color:floralwhite
}

body{
    background-color:antiquewhite  
}


li { color: rgb(51, 101, 138);
    
}

 footer{ font-family:"Raleway";
    color:darkgray;  
    margin: 3em;
    padding: 0;
    font-size: 1em;

     
}

.container{
    display: flex; 
    justify-content: space-around;
    margin:20px 5px;
    background: #ffffff;
    text-align: center;
    font-size: 1em;
    margin: 1em;
    padding: .5em;
    
}


a{ display: inline-block;
    align-items: center;
    text-decoration: none;
    display: inline-block;
    align-items: center;
    text-decoration: none;   
    background: #ff9d00;
    padding: .5em;
    color: rgb(238, 250, 250);
    text-decoration: none;
    
    }