body
{
  max-width: 800px;
background-color : #2d5aab; 
  padding:0;
  margin:0 auto;
  font-family: sans-serif;
  
  
}
nav
{ width:100%;
  background: #00316b;
}
ul
{
  width:80%;
  margin:0 auto;
  padding:0;
  
  }
ul li 
{
  list-style:none;
  display: inline-block;
  padding:30px;
  font-size:20px;
  
}
ul li:hover
{
  background:#e91e63;
}
ul li a
{
 color:#fff;
  text-decoration:none;
}
.toggle
{
  width: 100%;
  padding:15px 20px;
  background-image: url("Images/Ciel.jpg");
  background-size: 100%;
  background-repeat: no-repeat;
  text-align: right;
  box-sizing: border-box;
  color: #fff;
  font-size:30px;
  display: none;
  
}
@media (max-width:768px)
  {
    .toggle
    {
      display: block;
    }
  }
ul
{
  width:100%;
  display:none;
}
ul li
{
  display: block;
  text-align: center;
}
.active
{
  display: block;
}