body {
  background-color: white;
}

html {
  font-family: Arial, sans-serif
}

h1 {
  text-align: center;
}

.menu,
.menuActif {
  display: flex;
  background-color: cyan;
  justify-content: center;
  width: 20%;
  font-size: 20px;
  border-style: solid;
  border-width: 1px;
}

.menuActif {
  background-color: deepskyblue
}

header {
  display: flex;
  flex-direction: column;
}

nav {
  display: flex;
}

article {
  text-align: justify;
  margin-top: 3%;
  margin-left: 18%;
  margin-right: 18%;
  font-size: 25px;
}

footer {
  border-top: 1px solid black;
  padding-top: 10px;
  margin-top: 3%;
  text-align: center;
}

.menu:hover {
  background-color: lightblue;
}

.img {
  display: flex;
  justify-content: center;
  margin-top: 5%;
  width: 100%;
  height: auto;
}

#bcf {
  width: 50%;
}


@media all and (max-width: 600px) {
  nav {
    flex-direction: column;
    width: 500%;
  }

}

#logoFrib {
  display: flex;
  width: 12%;
  margin: auto;
}

a {
  text-decoration: none;
  color: black;
}

.logo {
  background-color: black;
}

#langue ul{
  margin: 0;
  padding: 0;
}

#langue li {
  list-style: none;
  float: left;
  position: relative;
}

#langue ul li a {
  color: black;
  text-decoration: none;
  width: 150px;
  height: 30px;
  display: block;
  text-align: center;
}

#langue ul ul {
  position: absolute;
  top: 30px;
  visibility: hidden;
}

#langue ul li:hover ul{
visibility: visible;
}
#langue{
  display: flex;
  margin-bottom: 100px;
  justify-content: right;
}