/* body */
body {
  margin: 0;
  padding: 0;
  background: #ccc;
}

/* header */
#logo, #titel {
    float: left;
}

#logo, #titel, #header, #center {
    position: relative;
}

#logo {
    height: auto;
    width: 46px;
    top: 2px;
    left: 2px;
    margin-right: 10px;
}

#header {
    font-size: 22px;
}

#titel {
    top: 13px;
}

header {
    background-color: #888;
    height: 51.74px;
}

/* nav */
ul.nav.responsive, .nav.responsive li {
    display: block;
}

.nav ul, .nav li{
    display: none;
}

.nav ul {
  list-style: none;
  background-color: #444;
  text-align: center;
  padding: 0;
  margin: 0;
}

.nav li {
  font-family: 'Oswald', sans-serif;
  font-size: 1.2em;
  line-height: 40px;
  height: 40px;
  border-bottom: 1px solid #888;
}

.nav a {
  text-decoration: none;
  color: #fff;
  display: block;
  transition: .3s background-color;
}

.nav a:hover {
  background-color: #005f5f;
}

.nav a.active {
  background-color: #fff;
  color: #444;
  cursor: default;
}

div#hamburger {
    margin-bottom: 50px;
    font-size: 26px;
}

div#hamburger:hover {
    cursor: pointer;
}

div#hamburger a {
    text-decoration: none;
    color: #000;
}

.icon.open {
    transform: rotate(90deg);
    display: inline-block;
}

/* article */
img.artikel {
    width: 80px;
}

div.artikel {
    margin: 0px 10vw;
    width: 40vw;
}

div#artikel1 {
    margin-bottom: 60px;
}

button.artikel {
    width: 80px;
    height: 30px;
    font-size: 1em;
}

/* Footer */
footer{
    background-color: #888;
    clear: both;
    height: 135px;
    margin-top: 20px;
}

.flex{
    display: flex;
    justify-content: center;
}

p{
    font-size: 16px;
}

div#contact p, div#overons p{
    font-size: 17px;
    font-weight: bold;
}

#overons{
    margin-right: 50px;
    display: none;
}

#contact{
    margin-bottom: 10px;
}

li.contact{
    list-style-type: none;
}

ul.contact{
    position: relative;
    right: 40px;
}

@media screen and (min-width: 600px) {
    /* nav */
    .nav ul, .nav li{
        display: block;
    }

    .nav li {
    width: 120px;
    border-bottom: none;
    height: 50px;
    line-height: 50px;
    font-size: 1.4em;
    }

    .nav li {
    display: inline-block;
    margin-right: -4px;
    }

    div#hamburger {
        display: none;
    }

    /* article */
    img.artikel {
        width: 40%;
        height: auto;
    }

    p {
        font-size: 1.2vw;
    }

    /* footer */
    div#overons {
        display: inline-block;
    }
}