html    {
    font-size: 70%;
  
}

body{
    margin: 0;
    padding: 0;
    background-color: #344A75;
  
    font-size: 16px;
    position: relative;
    height: 100vh;
    
}
nav     {
    position: fixed;
    top: 0;
    text-align: center;
    background: #012469;
    color:white;
    width: 100%;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-left: 2%;
    padding-right: 2%;
}
.contenedor     {
    margin-left: auto;
    margin-right: auto;
    max-width: 800px;
    padding-top: 100px;
    padding-bottom: 50px;
 
   
    
}

h2  {
    color:white;
    font-size: 3.2rem;
}

@media(min-width:700px)     {

    html    {
        font-size: 100%;
    }
}
a   {
    text-decoration: none;
    color:white;
    margin-right: 20px;
}

footer  {
    position: absolute;
    background: #012469;
    color:white;
    padding-top: 20px;
    padding-bottom: 20px;
    bottom: 0;
    width: 100%;
    text-align: center;
}