body { 
    background:#d4d4d4;
    background-size:50%;
    width: left;
    text-align: center;
    margin-top: 15;}

header {padding-top: 2rem;
    padding-bottom: 2rem;
    margin-right: 2rem;
    margin-left: 2rem;
    margin-top: 2;
    margin-bottom: 0;margin: 0rem:}

h2 {color:brown};
h3 {color:black; font-family: sans-serif}

    
footer {font-variant: small-caps}

   
.cuadro{    
    background: #b1aeae;
    margin: 2rem 4rem 0rem 4rem;
    padding-top: -1rem;}

   nav{
    text-align: inherit;
    }

nav ul {
    margin-top: 6rem;
    padding-top: -1rem
    list-style-type: left;
    margin: 2rem 4rem 0rem 4rem;
    background-color: brown;
    }

nav ul li{
    display: inline-block;
    padding: 0.8rem;
    }

nav ul li a{
    text-decoration: none;
    font-family: sans-serif;
    font-size: 0.8rem;
    margin: 0;
    padding: 0.8rem;
    color: white;
    }