body {
    background-color: #FFFAFA;
}

h1 {
	font-size: 3em;
	padding-bottom: 0;
}

h2 {
    font-size: 2.2em;
}

header {
	text-align: center;
}

#selection {
	text-align: center;
	font-size: 1.3em;
}

p, a {
	text-align: center;
	font-size: 1.3em;
}

#info a, #references a {
	text-align: center;
	font-size: 1.1em;
}

#title {
    color: black;
    text-decoration: none;
	font-size: 3em;
	padding-bottom: 0;
}

#mainunits, #units1, #units2, #number1, #number2 {
	font-size: 0.9em;
}

#group1 {
	display: block;
	padding: 1em;
}

#words {
	display: block;
}

#group2 {
	display: block;
	padding: 1em;
}

#kat {
    width: 400px;
    border-style: solid;
    border-width: 3px;
    border-radius: 5px;
    border-color: black;
}

#info, #endlink {
     margin-left: auto;
     margin-right: auto;
     text-align: center;
}

@media (max-width: 850px) {

h1 {
	font-size: 2.2em;
	padding-bottom: 0;	
}

h2 {
    font-size: 1.8em;
}

#selection {
	text-align: center;
	font-size: 1.1em;
}

#mainunits, #units1, #units2, #number1, #number2 {
	font-size: 0.8em;
}

p, a {
	text-align: center;
	font-size: 1.1em;
}

#info a, #references a {
	text-align: center;
	font-size: 1em;
}

#title {
	font-size: 2.2em;
	padding-bottom: 0;	
    color: black;
    text-decoration: none;
}

#group1 {
	display: block;
	padding: 1em;
}

#words {
	display: block;
}

#group2 {
	display: block;
	padding: 1em;
}

#kat {
    width: 400px;
}

}

@media (max-width: 650px) {

h1 {
	font-size: 2.2em;
	padding-bottom: 0;	
}

h2 {
    font-size: 1.8em;
}

#group1 {
	display: block;
	padding: 1em;
}

#words {
	display: block;
}

#group2 {
	display: block;
	padding: 1em;
}

#kat {
    width: 400px;
}

}


@media (max-width: 500px) {

h1 {
	font-size: 1.7em;
	padding-bottom: 0;	
}

h2 {
    font-size: 1.3em;
}

#group1 {
	display: block;
	padding: 1em;
}

#words {
	display: block;
}

#group2 {
	display: block;
	padding: 1em;
}

#kat {
    width: 350px;
}
}

@media (max-width: 400px) {

h1 {
	font-size: 1.3em;
	padding-bottom: 0;	
}

h2 {
    font-size: 1.2em;
}

#selection {
	text-align: center;
	font-size: 1em;
}

#mainunits, #units1, #units2, #number1, #number2 {
	font-size: 0.9em;
	margin-top: 5px;
}

p, a {
	text-align: center;
	font-size: 1em;
}

#info a, #references a {
	text-align: center;
	font-size: 0.9em;
}

#title {
	font-size: 1.3em;
	padding-bottom: 0;	
    color: black;
    text-decoration: none;
}

#group1 {
	display: block;
	padding: 0.7em;
}

#words {
	display: block;
}

#group2 {
	display: block;
	padding: 0.8em;
}

#kat {
    width: 300px;
}
}