html {
    background-color: lightgray;
    font-size: 1.3em;
    margin: 0;
    padding: 0;
}

body {
    margin: 0 auto;
    max-width: 1080px;
    background-color: white;
    font-family: "Helvetica", sans-serif, "Arial";
    word-wrap: break-word;
}

table {
    border-collapse: collapse;
    table-layout: fixed;
    width: 100%;
    word-wrap: break-word;
}

tr {
    /*display: table-row;*/
}

th {
    border: 1px solid black;
    background-color: #eeeeee;
    color: black;
    font-weight: bold;
}

td {
    border: 1px solid black;
    background-color: white;
    padding: 5px;
    /*display: table-cell;*/
    word-wrap: break-word;
}
img {
    max-width: 96%;
}

button {
    cursor: pointer;
}

pre {
    background-color: #fbfaf9;
    color: #333333;
    box-shadow: inset 0 0 0.5em #cccccc;
}


code {
    white-space: pre-wrap;
}

.middle {
    /*display: block;*/
    margin-left: auto;
    margin-right: auto;
}

.left {
    /*display: block;*/
    margin-right: auto;
}

.right {
    /*display: block;*/
    margin-left: auto;
}

nav {
    margin: auto;
    height: 50px;
    max-width: 1080px;
    width: 100%;
    background-color: darkblue;
    position: fixed;
    top: 0;
    z-index: 100;
}

nav button {
    margin: 5px 10px;
    padding: 10px;
}

aside {
    visibility: hidden;
    background-color: black;
    color: yellow;
    position: fixed;
    top: 50px;
    padding: 0;
    margin: 0;
    overflow: auto;
    max-height: 100%;
    /*height: 100%;*/
    z-index: 50;
}

aside ul {
    padding: 10px;
}

aside li {
    display: list-item;
    list-style-type: none;
    border: 1px solid #333333;
    padding: 5px;
}

aside a {
    color: white;
    padding: 5px;
    text-decoration: none;
}

aside a:hover {
    background-color: green;
}

#contenido {
    padding: 50px 50px;
    /*padding: 2em;*/
}

.ancla:before {
    display: block;
    content: " ";
    margin-top: -80px;
    height: 80px;
    visibility: hidden;
}

@media only screen and (max-width: 600px) {
    html {
        font-size: 0.9em;
    }

    body {
        padding: 3px;
        margin: 0;
        word-wrap: break-word;
        background-color: #fafafa;
        max-width: 100%;
    }

    table {
        table-layout: fixed;
        width: 100%;
    }

    td {
        word-wrap: break-word;
    }

    #contenido {
        padding: 50px 5px
    }
}