/***********body **************/
body {
  text-align: center;
  margin: 0px;
  padding: 0px;
  background-color: rgb(169, 169, 248);
  font-family: Arial, "Arial Black", "Times New Roman", Times, serif;
}

/******************** header **************************************/

header {
  background-image: url("images/drapeau016.jpg");
  background-position: center;
  background-size: cover;
  height: 170px;
  color: white;
  text-align: center;
}

header nav {
  display: flex; /* aligner les éléments*/
  flex-wrap: wrap; /*empiler les éléments*/
  justify-content: space-between; /*espacer le premier onglet */
  padding: 20px;
}

header nav a {
  color: black;
  font-size: 15px;
  font-weight: bold;
  text-decoration: none;
  margin-right: 15px;
  background-color: white;
  padding: 5px;
}

header nav a:hover {
  color: blue;
  font-weight: bolder;
  border: 3px solid blue;
  background-color: #ffd6b1;
  padding: 2px;
}

/****************** principal *************************/

.principal {
  background-color: #222f3e;
  display: block; /*aligner les éléments*/
  margin-top: 0;
  margin-bottom: 0;
  text-align: center;
  display: flex; /*aligner les éléments*/
  flex-wrap: wrap; /*empiler les éléments*/
}

.principal h4 {
  margin-top: -10px;
  margin-bottom: 0;
  padding: 20px;
  font-size: 20px;
}

.principal p {
  text-align: center;
  margin-bottom: 0;
  padding: 20px;
  font-size: 20px;
}
/************** premieres-presentations ****************/

.premieres-presentations {
  margin-top: 0;
  height: auto;
  background-color: #222f3e;
  color: #fff;
  text-align: center;
  padding: 30px;
  display: flex; /*aligner les éléments*/
  flex-wrap: wrap; /*empiler les éléments*/
}
.premieres-presentations .gauche {
  width: 50%;
  margin-right: 20px;
  margin-top: 0px;
  text-align: center;
}
.service {
  font-size: 22px;
  margin: auto;
  margin-top: 0px;
  text-align: center;
  display: block; /*aligner les éléments*/
  flex-wrap: wrap; /*empiler les éléments*/
}

.premieres-presentations a {
  color: white;
  font-size: 18px;
  font-weight: bold;
  text-decoration: none;
  padding: 5px;
  text-align: center;
}

.premieres-presentations a:hover {
  color: lime;
  font-weight: bold;
  font-size: 18px;
  border: 3px solid blue;
  padding: 2px;
  text-align: center;
}
.premieres-presentations .droite a:hover {
  border: 0px;
}

/******************* partenaire ************************/

.partenaire {
  padding: 20px;
  background-image: url("images/bleu_0003.jpg");
  color: #fff;
  text-align: center;
}
.partenaire p {
  text-align: justify;
}

/******************** footer****************************/

footer {
  text-align: center;
  background-image: url("images/bleucla_040.jpg");
  padding: 5px;
  margin-bottom: 0;
}

/******************* media query*************************/

@media screen and (max-widht: 810px) {
  body {
    image-resolution: 100%;
  }

  .premieres-presentations .gauche {
    width: 100%;
  }
}