body {
	font: 1.4em 'Roboto', sans-serif;
	margin: 20px;
	padding: 0;
	background: #111;
}

.wrapper {
	max-width: 960px;
	margin: 0.5em auto;
}

h1{
	text-align: center;
	font: 3.5em 'Neonderthaw', cursive;
	color: #fff;
	margin-top:20vh;
}
.block_lien{
	text-align: center;
	padding: 0.5em;
	margin-right: auto;
	margin-left: auto;
	min-width:30vw;
}
a:link, a:visited, a:hover, a:active { 
	text-decoration: none; 
	color: #fff;
}
.block_lien a{
	display:block;
	border:1px solid #aaa;
	padding:0.5em;
	/* min-height:5vh; */
	color: #ddd;
}
.block_lien a:hover{
	display:block;
	border:1px solid #fff;
	padding:0.5em;
	color: #fff;
	background:rgba(255, 255, 255, .1);
}

section{
	padding-bottom:1.5em;
}

@media screen and (min-width: 600px) {
	.wrapper {
	  display: grid;
	  grid-template-columns: 1fr;
	  column-gap: 5%;
	}
}

.logo{
	display:block;
	width:50%;
	margin-left:auto;
	margin-right:auto;
}

.logo img{
	max-width:60%;
	margin:1em;
}

.logo_flickr{
	width:100%;
}