header{
	margin: 0;
	padding: 0;
	border: 0;
	outline: 0;
	position: relative;
	background: rgb(135,224,253); /*rgb(135,224,253);*/ /* Old browsers */
	background: -moz-linear-gradient(45deg, rgba(135,224,253,1) 0%, rgba(83,203,241,1) 40%, rgba(5,171,224,1) 100%); /* FF3.6+ */
	background: -webkit-gradient(linear, left bottom, right top, color-stop(0%,rgba(135,224,253,1)), color-stop(40%,rgba(83,203,241,1)), color-stop(100%,rgba(5,171,224,1))); /* Chrome,Safari4+ */
	background: -webkit-linear-gradient(45deg, rgba(135,224,253,1) 0%,rgba(83,203,241,1) 40%,rgba(5,171,224,1) 100%); /* Chrome10+,Safari5.1+ */
	background: -o-linear-gradient(45deg, rgba(135,224,253,1) 0%,rgba(83,203,241,1) 40%,rgba(5,171,224,1) 100%); /* Opera 11.10+ */
	background: -ms-linear-gradient(45deg, rgba(135,224,253,1) 0%,rgba(83,203,241,1) 40%,rgba(5,171,224,1) 100%); /* IE10+ */
	background: linear-gradient(45deg, rgba(135,224,253,1) 0%,rgba(83,203,241,1) 40%,rgba(5,171,224,1) 100%); /* W3C */
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#87e0fd', endColorstr='#05abe0',GradientType=1 ); /* IE6-9 fallback on horizontal gradient */
	width: 100%;
	height:75px;
	display:block;

}



a:link, a:visited{
color:#191919;
text-decoration:none;
font-weight:bold;
}

a:hover, a:active {
color: rgba(5,171,224,1);
}

nav
{
	position:relative;
    width:100%;
	height:40px;
	margin: 0 auto;
	padding-top: 10px;
	padding-bottom: 10px;
	background:#555;
	border-bottom: 1px solid #333;	
}
nav ul
{
	list-style-type:none;
	display:flex;
}
nav li
{
	font-size: 20px;
	/*color:rgb(168,168,168);*/
	display : inline-block;
	padding-left : 40px;
	padding-right: 40px;
}

nav a
{
	color:rgb(168,168,168);
}

nav a:link
{
	color:rgb(168,168,168);
}

nav a:visited
{
	color:rgb(168,168,168);
}

nav a:hover
{
	color:#FFFFFF;
}

#bloc_menu
{
	display:flex;
    justify-content: center;
    align-items: center;
}

h3
{
	font-size : 18px;
	font-weight: bold;
	text-decoration: underline;	
}