body {
background: url(/images/fond.jpg) no-repeat;
background-size:100%;
width: 100%;
}

h1 {
  font-size: 5em;
  font-size: 16vw;
  margin: auto;
  text-align: center;
  color: tomato;/*crimson;/*coral;/*gold;/*limegreen;/*chartreuse;/*lawngreen;*/
  text-shadow: 6px 10px 12px gold;/*crimson;/*lightcoral;/*red;*/
}