* {
    box-sizing: border-box;
}

:root {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    --fondoheader: rgb(60, 57, 57);
    --fondoprincipal: rgb(230, 230, 230);
    --colorprincipal: white;

}

body{
    margin: 0px;
    padding: 0px;
}

header {
    height: 120px;
    text-align: center;
    color: var(--colorprincipal);
    background-color: var(--fondoheader);
    font-size: 2em;
}

header fieldset {
    width: 80%;
    border-radius: 6px;
    padding: 7px;
    border: 1px solid var(--fondoprincipal);
    margin: auto;
}


main {
    display: grid;
    grid-template-columns: 20% auto;   
}

#menu {
    background-color: var(--fondoheader);
    color: var(--colorprincipal);
}

#menu nav ul {
    padding: 0px;
    margin: 0px;
    list-style: none;
}

#menu nav ul li a {
    display: block;
    border-bottom: 1px solid var(--colorprincipal);
    color: var(--fondoprincipal);
    padding: 15px;
    text-decoration: none;
}

main article {
    padding: 15px;
    background-color: var(--fondoprincipal);
}

main article img {
    display: block;
    margin: auto;
    border: 20px solid var(--colorprincipal);
    border-bottom: 60px solid var(--colorprincipal);
    max-height: 80vh;
    -webkit-box-shadow: 0px 0px 23px 3px rgba(60, 57, 57, 1);
    -moz-box-shadow: 0px 0px 23px 3px rgba(60, 57, 57, 1);
    box-shadow: 0px 0px 23px 3px rgba(60, 57, 57, 1);
}

main article nav {
    display: block;
    margin: auto;
    text-align: center;
    margin-top: -80px;
}

main article nav ul {
    padding: 0px;
    margin: 0px;
    list-style: none;
}

main article nav ul li {
    display: inline-block;
    margin: 30px;
}

main article nav ul li a{
    font-size: 2em;
    color: var(--fondoheader);
    text-decoration: none;
}