:root {
	--hintergrundfarbe: #ccc;
}

body { 
background-color: var(--hintergrundfarbe); 
// background-image: url("beton.jpg");
}

.kachel { min-width: 125px; height: 125px; margin: 5px; float: left; border-radius: 5px; -webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;}
div.kachel a { min-width: 125px; height: 105px; padding: 10px; display: block; vertical-align: middle; font-family: verdana; font-size: 1.8em; font-weight: bold; text-decoration: none; }

.gruen { background-color: #060; color: #6f3; }
.blau { background-color: #0040ff; color: #45d4ff; }
.rot { background-color: #b40000; color: #fff; }
.weiss { background-color: #fff; color: #000; }
.gelb { background-color: #ff0; color: #000; }
.orange { background-color: #fc0; color: #f00; }
.schwarz { background-color: #000; color: #fff; }
.schwarz-rot { background-color: #000; color: #f00; }
.schwarz-gelb { background-color: #000; color: #ff0; }
.ikea { background-color: #069; color: #fc0; }
.obi { background: #ff7e21; color: #eee; }
.lime { background: #0f0; color: #000; }
.aqua { background: #0ff; color: #000; }
.deca { background-color: #0082c3; color: #fff }
.pink { background-color: #dd0077; color: #fff }