body {
    background-color: black;
    font-family: "Oswald", sans-serif;
    list-style: none;
}
.sidenav {
    height: 100%;
    width: 250px;
    position: fixed;
    z-index: 1;
    top: 0;
    left: -250px;
    background-color: black;
    padding-top: 60px;
    transition: left 0.5s ease;
}

.sidenav a {
    padding: 8px 8px 8px 32px;
    text-decoration: none;
    font-size: 25px;
    color: white;
    display: block;
    transition: 0.3s;
}

.sidenav a:hover {
    color: white;
}

.sidenav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.sidenav.active {
    left: 0;
}

.close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 36px;
    z-index: 2;
    display: none;
    color: white;
}

.sidenav.active + .close {
    display: block;
}

.burger-icon span {
    display: block; 
    width: 35px;
    height: 5px;
    background-color: white;
    margin: 10px 0;

}
#tel{position: fixed;}
ul{
    display: flex;
    justify-content: center;
    margin-right: 2%;
    list-style: none;
 }
#img {
    text-align: center;
    color: white;
}
#img img {
    width: 100%;
    height: auto;
}

.code {
    max-width: 400px;
    margin: 20px;
    border-radius: 100%;
}
#matieres {
    display: flex;
    justify-content: center;
}

#travaux{
    color: white;
}
h1{
    color: white;
    font-size: 3em;
    font-family: "Oswald", sans-serif;
    display: flex;
    justify-content: center;
}
h2 {  color: white;
    font-family: "Oswald", sans-serif;
    display: flex;
    justify-content: center;
font-size: 30px;}

.code:hover {
    filter: blur(5px);
}
.vol:hover .cacher {
    visibility: visible;
}
.cacher {
   color: white;
 visibility: hidden;
   z-index: 5;
   font-family: "Oswald", sans-serif;
   font-size: 50px;
   display: flex;
   justify-content: center;
  position: relative;
  top: -50%
}
.work{
    width: 100%;
}
.work:hover{
    filter: blur(20px);
}
.nom{
    color: white;
    font-family: "Oswald", sans-serif;
   font-size: 50px;
   position: relative;
   top: -20%
}
.desp{ display: flex;
    justify-content: center;
   position: relative;
   top: -50%;
visibility: hidden;
list-style: none;}

.nom:hover .desp{
    visibility: visible;
}
.base:hover {
    font-weight: bolder;
    font-size: 20px;
}
.base {margin-left: 40px;}