body {
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    font-size: 1.2em;
    background-color: snow;
    color: dimgrey;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    color: green;
}

h1{
    font-size: 2em;
}
.titel {
    text-decoration: none;
}

section {
    width: 40em;
    margin: 2em auto;
}

b {
    color: black;
}

a {
    color: green;
}

a:visited {
    color: mediumseagreen;
}

article a[href^="http"]::after,
article a[href^="https://"]::after {
    content: "";
    width: 0.9rem;
    height: 0.9rem;
    margin-left: 4px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='currentColor' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M8.636 3.5a.5.5 0 0 0-.5-.5H1.5A1.5 1.5 0 0 0 0 4.5v10A1.5 1.5 0 0 0 1.5 16h10a1.5 1.5 0 0 0 1.5-1.5V7.864a.5.5 0 0 0-1 0V14.5a.5.5 0 0 1-.5.5h-10a.5.5 0 0 1-.5-.5v-10a.5.5 0 0 1 .5-.5h6.636a.5.5 0 0 0 .5-.5z'/%3E%3Cpath fill-rule='evenodd' d='M16 .5a.5.5 0 0 0-.5-.5h-5a.5.5 0 0 0 0 1h3.793L6.146 9.146a.5.5 0 1 0 .708.708L15 1.707V5.5a.5.5 0 0 0 1 0v-5z'/%3E%3C/svg%3E");
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    display: inline-block;
}

nav a {
    text-decoration: none;
    background-color: green;
    color: snow;
    text-decoration: none;
    padding: 0.5em 0.5em;
    border-radius: 10px 100px / 120px;

}

nav a:visited {
    color: snow;
}

.aktief {
    background-color: gold;
    color: green;
}

/* de link naar een onderdeel */
.linkknop {
    text-align: center;
    padding: 1em 0;
}

.linkknop a {
    background-color: green;
    color: snow;
    text-decoration: none;
    padding: 1em 0.5em;
    border-radius: 10px 100px / 120px;
}