body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
}


@media screen and (min-width: 800px){
    #top-background {
	height: 70px; 
	background-repeat: repeat-x;
	background-image: url("../media/pict/bg_header.jpg");
	/* opc-adapt-url background-image: url("media/pict/bg_header.jpg"); */
    }

}


@media screen and (max-width: 800px){
    #top-background { background-color: #B8860B; height: 60px; }
    #top-title {height: 60px; }
}


div.boxes {
    padding-top: 1em;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
}


div.box {
    border: solid 1px; margin: 1.5em; padding: 0.5em 1em;
    min-height: 8em;
    width: 22em;
    background-repeat: no-repeat;
    background-position: right top;
}

div.box h2 { margin-top: 0.25em; }
div.box p { padding-right: 7em; }
div.box a { color: #8B4513; text-decoration: none; }

#colors { background-image: url('../media/pict/teaser_colors.png'); }
#charset { background-image: url('../media/pict/teaser_charset.png'); }
#xpath { background-image: url('../media/pict/teaser_xpath.png'); }
#math { background-image: url('../media/pict/teaser_math.png'); }