body {
  text-align: center;
  background-image: url("../images/fond.webp");
  background-attachment: fixed;
  background-position: center center;
}
#menu_m {display: none;}
#navigation {
  margin: auto;
  margin-top: 15px;
  width:65%;
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.slider {
  width: 100%;
  box-shadow: 0px 0px 30px #999;
  text-align: left;
  border: 1px solid white;
}
.slider img {width: 100%;} 
.precedent,
.suivant {
  opacity: 0.6;
  width:100px;
}
.precedent:hover,
.suivant:hover {
  opacity: 1;
}

#fr,
#en,
#de {
  font-family: "arial";
  color: white;
  padding-left: 15px;
  background-color: grey;
  padding: 5px;
  font-size: 20px;
}
hr {
  height: 1px;
  color: gray;
  width: 70%;
}
#menu {
  display: flex;
  width: 1024px;
  justify-content: space-between;
  margin: auto;
}

.menu_fr,
.menu_en,
.menu_de {
  margin: auto;
  width: 1024px;
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.vue {
  font-family: "verdana";
  line-height: 1.5em;
  font-size: 20px;
  color: #ffa500;
  text-shadow: 0px 5px 5px #aaaaaa;
}
#overlay {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #b2f2f9;
  border: 1px solid gold;
  border-radius: 10px;
  font-size: 20px;
  text-align: left;
  z-index: 15;
}
/* #overlay img{width: 100%;} */
.masque {
  display: none;
}
#sombre {
  background-color: rgba(0, 0, 0, 0.6);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: none;
  z-index: 10;
}

#fr img,
#en img,
#de img {
  width: 80px;
  margin-left: 200px;
}


/* ================================================== */
@media screen and (max-width: 599px) {
  #menu {
    display: none;
  }
  .suivant {
    opacity: 1;
    order: 2;
  }
  .precedent {
    opacity: 1;
    order: 1;
  }
  #menu_m {
    width: 200px;
    height: 40px;
    border: 1px solid white;
    border-radius: 5px;
    display: flex;
    justify-content: center;
    margin: auto;
  }
  #navigation {
    width: 340px;
    flex-wrap: wrap;
  }
  .slider {
    width: 90%;
    margin-bottom: 20px;
  }
  #overlay img {
    width: 340px;
  }
}

/* ============================================================== */
@media screen and (min-width: 700px) and (max-width: 1023px) {
  #menu {
    display: none; }
  #menu_m {
    width: 200px;
    height: 40px;
    border: 1px solid white;
    border-radius: 5px;
    display: flex;
    justify-content: center;
    margin: auto;
  }
  #navigation {
    width: 650px;
  }
  .precedent,
  .suivant {
    opacity: 1;
  }
  #overlay img {
    width: 500px;
  }
}