:root {
			max-width: 65em;
			margin: 0 auto;
  
		}

		main {
			min-height: 25em;
			display: flex;
			display: -webkit-flex;
      background-image:url(../bilder/Papierhintergrund.jpg);
      
		}

		header, section, article, nav, footer, main {
			margin: 0.25em;
			padding: 0.5em;
			border: 1px solid #ccc;
			border-radius: 0.5em;
      		}

		article {
			min-height: 25em; /* notwendig für IE */
			/*background: #dd8;*/
			flex: 1 3 35em;
			-webkit-flex: 1 3 35em;
			order: 2;
			-webkit-order: 2;
		}

		nav {
			/*background: #ccf;*/
      /*background-image:url(Papierhintergrund.jpg);*/
			flex: 0 2 10em;
			-webkit-flex: 0 2 10em;
			order: 1;
			-webkit-order: 1;
		}


		header, footer, section{
			min-height: 2em;
			background: #feb;
      background-image:url(../bilder/Papierhintergrund.jpg);
		}


		@media all and (max-width: 35em) {
			main {
				flex-direction: column;
				-webkit-flex-flow: column;
			}
			main > * {
				order: 0;
				-webkit-order: 0;
			}
		}