h1 {
		grid-column: 1 / -1;
	}

	details {
		transition: all .3s;
		border: thin solid;
		overflow: hidden;
		//margin-bottom: 1em;
		margin-bottom: 0em;				
	}
		
	details[open] {
		transition: all 1s;
	}
		
	details > div {
		padding: .5em;
	}

	summary {
		position: relative;  
		line-height: 300%;
		padding-left: 1em;	
	}
    
	summary::after {
		content: url("./../img/pfeil_unten.png");
		position: absolute;
		font-size: 2em;
		font-weight: bold; 
		right: 1em;
		top: .2em;
		transition: all 0.5s;
	}	

	details[open] summary::after {
		content: url("./../img/pfeil_oben.png");		
		transform: scale(1,1);
	}

	.gleiscontainer {
		background-color : #CCCCCC;
		height: 40%;
		width:  80%;
		overflow: scroll;
		position: relative;
		z-index: 900;
	}