body {
    /* background: #C57B57; */
    background: #042A2B;
    font-size: 16px;
}

img {
    max-width: 100%;
}

h1, h2, h3, h4, p, li {
    padding: 0;
    margin: 0;
    margin-bottom: 0.5em;
    line-height: 1.3em;
    font-weight: normal;
}

h1 { font-size: 2em; }
h2 { font-size: 1.5em; }
h3 { font-size: 1.2em; }
h4 { font-size: 1.1em; }

a {
    text-decoration: none;
    color: #b22222;
}

a:hover {
    text-decoration: underline;
    color: crimson;
}

.navi, .content, .footer {
    margin: 0 auto;
    max-width: 800px;
    padding: 10px;
}

.content, .footer {
    background: #ffcc99;
    border: 1px dotted black;
    border-radius: 10px;
    margin-bottom: 10px;
}

.footer {
    text-align: center;
}

.navi h1 {
    margin: 40px 0;
    line-height: 1em;
    font-weight: bold;
}

.navi h1 a {
    color: #ffcc99;
}

.navi ul {
    margin: 0;
    padding: 0;
}

.navi ul li {
    text-align: center;
    list-style: none;
    text-decoration: none;
    display: inline-block;
    padding: 5px;

    background: #ffcc99;
    border: 1px dotted black;
    border-radius: 10px;
}

.navi ul li:hover {
    background: crimson;
}

.navi ul li:hover a {
    color: white;
    text-decoration: underline;
}