/* alternatives Boxmodell */
html { 
  box-sizing: border-box; 
  
} 

*, ::before, ::after { 
  box-sizing: inherit; }

body {
	margin: 0 auto;
	max-width: 87em;
	font-family: Arial, Helvetica, sans-serif;
	color: #333333;
	background-color: #5189aa;
	display: grid;
	grid-template-columns: 1fr;
	grid-template-rows: min-content 1fr ;
	gap: 0em;
	min-height: 80vh;

}

a.button{
	font-weight: bold;
	box-shadow: 0 0 20px #c7e8e9 inset, 0 2px 1px rgba(0,0,0,0.2);
	background-color: #5189aa; 
	border-radius: .5em;
	color: white;
	padding: 5px 19px;
	text-align: center;
	text-decoration: none;
	display: inline-block;
	font-size: 20px;
	margin: 4px 2px;
	cursor: pointer;
}
a.button:hover,
a.button:focus {
	background:rgb(20, 32, 141);
}



a {
	color:rgb(5, 92, 9); 
font-size: 1.6em;

}

/*randloses iFrame*/
iframe {
	border-color: blue;
  border-style: solid; 
}

/*ul a {

	font-family: comic sans ms;
    font-size: 1.5em;
	font-display:auto ;
	color:  rgb(5, 92, 9);
}
*/
nav {
	font-family:comic sans ms;
    font-size: 1.5em;
	font-display:auto ;
	color:  rgb(5, 92, 9);
}

ul {

	font-family: comic sans ms;
    font-size: 1.3em;
	font-display:auto ;
	position:relative;
	left: 7em;
	color:  rgb(5, 92, 9);

}


header h1 {
font-family: comic sans ms;
font-size: 3.2em;
color:  rgb(5, 92, 9);
}

nav h1 {

	font-family: comic sans ms;
	font-size: 2.0em;
	text-align: center;
}

tr, td {

	font-size: 1.0em;
	font-display:auto ;
	color:  rgb(5, 92, 9);
}

[name="Eiche"] {
	outline: thin solid hotpink;
	width: 100%;
}


/* ===== responsives Layout ===== */

/* Mobile first! 1-Spaltenlayout  */


/* 2-Spaltenlayout, sobald der Platz es erlaubt  */

@media only screen and (min-width: 65em) {
body {
	display: grid;
	
	grid-template-columns: repeat(1, 1fr);
	grid-gap:1em;
	position:relative;
	margin: 0em auto ;
  }

header
 {
	
	display: grid;
	grid-column: 1 / span 2;
	grid-row: 1;
	
}

section {

	grid-column: 1 / 2;
	grid-row: 2;
}

  nav {

	grid-column: 2 / 2;
	grid-row: 2;

}




footer {

display: grid;
	grid-column: 1 / span 2;
	grid-row: 3;

}

}
 
/* 3-Spaltenlayout, sobald der Platz es erlaubt  */
@media only screen and (min-width: 65em) {
 body {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	grid-gap:0em;
	position: relative;
	margin: 0em auto ;
}

section {

	grid-column: 1 / 2;
	grid-row: 2;
}	

nav {

	grid-column: 2 / 2;
	grid-row: 2;

}

header
 {
	
	display: grid;
	grid-column: 1 / span 2;
	grid-row: 1;
	
}

footer {

display: grid;
	grid-column: 1 / span 2;
	grid-row: 3;

}


}

/* Flexbox Fallback wenn der  Browser kein display:grid unterstützt. */
@supports not (display: grid) {
  body {
    display: flex;
    flex-flow: row wrap;
  }

body > * {
  flex: 1 100%;      /* Alle Elemente werden über die volle Breite dargestellt */
}
}