#taille_page_petite
{
	width:1000px;
	display: block;
	margin-left: auto;
	margin-right: auto;
	
	padding: 20px;
	padding-left: 30px;
	padding-right: 30px;
	
}

#taille_page_grande
{
	width:1200px;
	display: block;
	margin-left: auto;
	margin-right: auto;
}

#flex
{
	display: flex;
}

#flex_wrap
{
	display: flex;
	flex-wrap: wrap;
}

#flex_bloc
{
	display: flex;
}

#width
{
	width:100%;
}

.milieu
{
	display: block;
	margin-left: auto;
	margin-right: auto;
	text-align: center;
}