html {
	height: 100vh;
	background-color: red;
	
	padding: 0px;
	margin: 0px;
}

body {
	background-color: black;
	height: 100%;
	
	padding: 0px;
	margin: 0px;
}

.conteneur-principal {
    display: flex;
    flex-direction: column;
}

/*========================================================*/
/*====================== menu.php ========================*/

.conteneur-principal {
    display: flex;
    flex-direction: column;
}

.conteneur-principal-ligne {
    display: flex;
	flex-direction: row;
	
	height: 25vh;
}

.conteneur-child-1 {
    flex: 1;
}

.milieu-menu {
	width: 200px;
	margin-left: auto;
    margin-right: auto;

	background-color: purple;
}


/*------------------------------*/

.element1 {
	background-color: yellow;
}

.element2 {
	background-color: blue;
}

.element3 {
	background-color: green;
}

.element4 {
	background-color: white;
	
}

/*========================================================*/
/*====================== .php ========================*/