@media only screen and (min-width: 100px) and (max-width: 1025px) { 
    body {
        background-color: #ffffff;
    }
    .kachel {
        width: 300px;
    }
    .portait {
        width: 80%;
    }
}

@media only screen and (min-width: 1025px) { 
    body {
        /*background-color: #3f8f91;*/
        background-color: #ffffff;
    }
    .kachel {
        width: 300px;
    }
    .portait {
        width: 500px;
    }
}

* {
    box-sizing: border-box;
}

.col-1 {width: 8.33%;}
.col-2 {width: 16.66%;}
.col-3 {width: 25%;}
.col-4 {width: 33.33%;}
.col-5 {width: 41.66%;}
.col-6 {width: 50%;}
.col-7 {width: 58.33%;}
.col-8 {width: 66.66%;}
.col-9 {width: 75%;}
.col-10 {width: 83.33%;}
.col-11 {width: 91.66%;}
.col-12 {width: 100%;}

[class*="col-"] {
    float: left;
    padding: 0px;
    border: 0px solid #ff0000;
}

.child-col{
    width: 320px;
    margin: 0 auto;
}

.row::after {
    content: "";
    clear: both;
    display: table;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20px;
    padding: 0px;
    margin: 0px;
}
    
p {
    font-size: 20px;
}

h1 {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20px;
    padding: 0px; 
    margin: 0px;
}

table {
    padding: 0px;
    margin: 0px;
    font-size: 20px;
}

tr {
    padding: 0px;
    margin: 0px;
}

td {
    padding: 0px;
    margin: 0px;
}

img {
    padding: 0px;
    margin: 0px;
    border: 0px;
}

a {
    color: #666666;
}

a:hover {
    color: #3f8f91;
}

a.white {
    color: #ffffff;
    text-decoration: none;
}

a.white:hover {
    color: #3f8f91;
}

.header {
    background-color: #666666;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: small;
    color: #ffffff;
    width: 100%;
    padding-left: 50px;
    padding-top: 5px;
    padding-bottom: 5px;
    overflow: hidden;
    position: fixed;
}

.header2 {
    background-color: #ffffff;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    color: #000000;
    font-size: 35px;
    height: 100px;
    text-align: center;
    padding-top: 60px;
    padding-bottom: 80px;
}

.header3 {
    background-image: url(/img/trees.jpg);
    background-color: #3f8f91;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: xx-large;
    color: #ffffff;
    text-align: center;
    height: 500px;
    border-top: 1px solid #000000;
    border-bottom: 1px solid #000000;
}

.td-button {
    margin: 0px; 
    padding: 10px; 
    background-color: #666666; 
    color: #ffffff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
}

.td-button:hover {
    background-color: #444444; 
}