body{
	max-width:1800px;
	margin-left: auto;
	margin-right: auto;
	background-color: white;
	font-size: 0.8em;
	font-family: Avenir, Futura, Helvetica, Arial, Verdana, "Trebuchet MS", sans-serif, "sans serif";
	font-style: normal;
	text-decoration: none;
}

header{
	display: flex;
	position: fixed;
    left: 0px;
    top: 0px;
	width: 100%;
	background-color: white;
	font-size: 0.8em;
}
	
header img{
	margin: 20px;
	margin-left: 180px;
}

header a{
	color: black;
}

header a:hover{ 
	opacity: 0.7;
}

h1, h2, h3{
	color: white;
	font-size: 1.2em;
	margin-left: 50px;
	margin-top: 32px;
	font-style: normal; 
	text-decoration: none;
	color: black;
}

ul {
	list-style:none;
	margin-left:0;
	padding-left:0;
	width: 100%;
	}
	
nav{
	margin-top: 100px;
	margin-left: 55px;
}

li{
	margin: 28px;
	padding: 18px;
	background-color: white;
	
	display: inline-block;
	vertical-align: top;
	}

img{
	margin: 5px;
	margin-bottom: 15px; 
	}

p img{
	margin: 30px;
	margin-bottom: 35px;
	vertical-align:top;
	}
	
p
{
	margin: 5px;
	margin-bottom: 15px; 
	}
/*
img:hover{ 
	opacity: 0.7;
	}
*/
a {font-style: normal; text-decoration: none; color: black; } 
#bloc-eng a {font-style: normal; text-decoration: underline; color: grey; }
strong{ font-size: small; font-style: bold;}
em{ text-decoration: none; font-size: x-small; font-style: bold;}

#bloc-fr{
width: 400px;
display: inline-block;
vertical-align:top;
margin: 30px;
margin-right: 30px;
}

#bloc-eng{
width: 400px;
display: inline-block;
vertical-align:top;
margin: 30px;
margin-right: 30px;
color: grey;
}
#bloc-presentation{
width: 250px;
display: inline-block;
vertical-align:top;
margin: 30px;
margin-right: 30px;

}