body{
  background-color: green;
}
.sidenav {
  height: 100%; /* 100% Full-height */
  width: 10%; /* 0 width - change this with JavaScript */
  position: fixed; /* Stay in place */
  z-index: 1; /* Stay on top */
  top: 0; /* Stay at the top */
  left: 0;
  background-color: white; /* Black*/
  overflow-x: hidden; /* Disable horizontal scroll */
  padding-top: 40px; /* Place content 60px from the top */
  transition: 0.5s; /* 0.5 second transition effect to slide in the sidenav */
  text-align: right;
}

.sidenav a {
  margin-right:20%;
}

.titre {
  margin-left:10%; 
  margin-top: -50px;
  height: 100px ; 
  background-color: brown;
  text-align: center;
  font-size: 40px;
  background-image: ;
}