*, ::before, ::after{
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html{
	border: 2px solid red;
	background-color: silver;
	font-size: 62.5%;
	height: 100%;
}
body{
	background-image: url(img/index_balustrade_paysage.jpg);
	background-size: cover;
	/*background-repeat: repeat;*/
	background-position: center;
	border: 1px solid blue;
	height: 100%;
	text-align: center;
}
h1{
	display: inline-block;
	margin-top: 10vh;
	font-size: 7rem;
	color: red;
}
h2{ 
	display:inline-block;
	margin-top: 10vh;
	padding: 0px 10px 0px 10px;
	border-radius: 5px;
	box-shadow: 0 0 10px 0 white;
	font-size: 7rem;
	color: rgb(0,102,153);
	text-shadow: 1px 1px 2px white;
	font-style: italic;
	transition: all 0.5s ease-out;
}
h2:hover{
	background-color: silver;
	cursor: pointer;
}
body>div{
	display: flex;
	flex-direction: row;
	justify-content: center;
	align-items: center;
	margin-top: 10vh;
	height: auto;
}
div img {
	height: 10rem;
	filter: drop-shadow(5px 5px 4px white);
}
header{
	background-color: silver;
	margin: 0px 10px 0px 10px;
	padding: 10px;
	width: 70%;
	height: auto;
	box-shadow: 0 0 10px 0 white;	
	border-radius: 5px;
	color: rgb(0,102,153);
	font-size: 2rem;
	font-weight: bold;
	cursor: help;
}
@media screen and (min-width: 350px) and (max-width: 900px){
	html{font-size: 50%;}
	h1{ margin-top: 5vh; font-size: 4rem;}
	h2{ width: 90%; margin-top: 5vh; font-size: 4rem;}
	header{width: 95%;}
	body>div{ margin-top: 5vh; flex-wrap: wrap;}
	body>div header{order: -1;}
	body>div img{order: 1;}
}

@media screen and (max-width: 350px){
	html{font-size: 50%;}
	h1{ margin-top: 1vh; font-size: 4rem;}
	h2{ width: 90%; margin-top: 1vh; font-size: 3rem;}
	header{width: 95%;}
	body>div{ margin-top: 3vh; flex-wrap: wrap;}
	body>div header{order: -1;}
	body>div img{ display: none;/*order: 1; height: 7rem;*/}
}