/* Feuille de style */

body {
	background: linear-gradient(0.25turn, #3f87a6, #ebf8e1, #f69d3c);
}

h1{
  background-color: blue;
  color: white;
  padding: 20px;
}

h2{
  background-color: white;
  padding: 25px;
}

h3{
  background-color: red;
  color: white;
  padding: 30px;
}
h1,h2,h3{
	text-align:center;
}
#image_snt{
    display: block;
    margin: 0 auto;
	mix-blend-mode: multiply;
}