.blue{
            background-color: blue;
            color: white;
            position: absolute;
            left: 50px;
            top: 50px;
            z-index: 1;
        }
        .green{
            background-color: green;
            color: black;
            position: absolute;
            left: 100px;
            top: 100px;
            z-index: 2;
        }
        .yellow{
            background-color: yellow;
            color: black;
            position: absolute;
            left: 75px;
            top: 150px;
            z-index: 3;
        }
        .yellow_mark{
            background-color: yellow;
        }
        table{
            width: 200px;
            height: 125px;
            position: relative;
        }
        tr{
            position : absolute;
        }   
        td{
            font-size: 18px;
        }
        .div1{
            position: absolute;
            top: 300px;
            width: 500px;
            height: 150px;
            border: red 10px solid;
            text-align: right;
            background-image: url(bilder/metal.jpg);
            background-size: 250%;
        }