body {
    background-color: gray;
    font-family: Helvetica, Arial, sans-serif;
}

h1, h2, h3{
    margin: 0;
}

#container {
    background-color: white;
    width: 1000px;
    margin-left: auto;
    margin-right: auto;
    padding: 10px;
}


#header {
    background-color: blue;
    color: white; 
    text-align: center;
}

a{
    text-decoration: none;
    color: red;
}


#nav {
    width: 180px;
    float: left;
}

#nav ul{
    list-style-type: none;
    padding: 0;
}

#nav .selected {
    font-weight: bold;
}

#main {
    width: 600px;
    float: left;
}

.side-image {
    width: 30%; 
    height: auto;
    float: right; 
    margin-left: 20px; 
}

.sidetekst {
    text-align: justify;
    width: 180px;
    float: right;
}

#footer{
    clear: both;
    padding: 10px;
    background-color: black;
    color: white;
    text-align: right;
}

.grid {
  display: flex;
}

.panel {
  order: 2;
}

.game-area {
  order: 1;
}