body
{
  background: url("../fond.jpg");
}
body p
{
  font-size: x-large;
}
h1
{
  text-align: center;
  font-weight: lighter;
}
.premier
{
  font-size:26pt;
  font-weight: bold;
}
.essentiel
{
  font-weight: bold;
}
img
{
  border: 0;
}