*
{ 
    margin:0;
    padding:0;
    Box-sizing:border-box;
}

html,body
{
    width:100vw;
    height:100vh;
}

body
{
    background-image: url(../images/fond4.JPG);
}

h1
{
    color : black;
    text-align: center;
}

h2
{
    color: pink;
    background-color: black;
    text-align: center;
}
p,h4
{
    background-color : white;
    text-align: center;
}
h3
{
    background-color: white;
    text-align: center;
}
img {
  display: block;
  margin: auto;
}

li
{
    text-align: center;
    background-color : white;
}

.lien-centre {
  display: block;
  text-align: center;
}