.siteweb{
  color:blue;
  font-family:Garamond, Arial, Helvetica, sans-serif;
  font-size:20px;
  text-align:center;
}

.mail{ 
  color:blue;
  font-family:Garamond, Arial, Helvetica, sans-serif;
  font: size 16px;
  text-align:center;
}

.gtitre{
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  font-weight:blod;
  text-align:center;
  text-decoration:underline; 

}

img{
  height: 500px;
  display:block;
  margin-right: auto;
  margin-left: auto;

}

:root{
  --hauteur-menu: 60px;
}
* {
  margin: 0px;
  padding: 0px;
  font-family: Montserrat, sans-serif;
}
nav {
  width: 100%;
  font-size: 12px;
  position: sticky;
  top: 0;
}

nav > ul {
  display: flex;
  text-align: center;
  box-shadow: 0px 1px 2px 1px rgba(0,0,0,0.3);
  height: var(--hauteur-menu);
}
 
nav ul {
  list-style-type: none;
}

nav > ul > li {
  background-color: rgba(133, 168, 251, 0.632);
  position: relative;
  height: 100%;
  flex: 1;
}

nav > ul > li > a {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

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

}

li {
  text-align: center;
}

.menu-deroulant > a:after{
  content: '❯';
  font-size: 10px;
  margin-left: 7px;
  display: inline-block;
}

.sous-menu {
  margin-top: var(--hauteur-menu);
  width: 100%;
  text-align: left;
  background-color: rgba(133, 168, 251, 0.632);
  border-radius: 2px;
  overflow: hidden;
  max-height: 0;
  margin-right: auto;
  margin-left: auto ;
}

.sous-menu > li > a {
  height: 50px;
  padding-left: auto;
  padding-right: auto;
  width: 100%;
  align-items: center;
  display: flex;
}

nav > ul > li:hover > a{
  color: #2169EC;
}

.sous-menu > li:hover {
  background-color: rgba(33, 105, 236, 0.3);
}

.sous-menu > li:hover > a {
  color: white;
}

@keyframes rotationFleche {
  0% {
    transform: rotate(0deg);
  }
  100%{
    transform: rotate(90deg);
  }
}

.menu-deroulant:hover > a:after{
  animation: rotationFleche 0.2s linear forwards;
}

@keyframes apparitionSousMenu {
  0% {
    box-shadow: 0px 3px 3px 1px rgba(0,0,0,0);
    border-top: 3px solid #2169EC;
  }
  30% {
    box-shadow: 0px 3px 3px 1px rgba(0,0,0,0.3);
  }
  100% {
    max-height: 50em;
    border-top: 3px solid #2169EC;
    box-shadow: 0px 3px 3px 1px rgba(0,0,0,0.3);
  }
}

.menu-deroulant:hover > .sous-menu {
  animation: apparitionSousMenu 1s forwards;
}


  body {
    font-family: Arial, Helvetica, sans-serif;
    background: rgba(133, 168, 251, 0.632);
    margin: 3vh;
    padding: 3vh;
  }

  h1 {
    text-align: center;
    font-size: 1.2rem;
    position:relative;
    text-decoration: underline;
    padding-top: 5vh;
    padding-bottom: 2vh;
   
  }
  h2 {
    font-size: 1.5rem;
    color:rgb(222, 7, 7);
    text-decoration: underline;
    text-align: center;
    padding: 1vh;
  }

  h3{
    font-weight: bold;
    padding: 1vh;
    text-decoration: underline;
  }

 
  h5 {
    font-size:1rem;
    color: green;
    text-decoration: underline;
    padding: 1vh;
  }
    

  h6 {
    font-size: 0.8rem;
    font-weight: bold;
    padding: 1vh;
  }
  .defs h6{
    color: rgb(181, 5, 5);
    padding: 1vh;
  }

  p {
    font-size: 0.8rem;
    
      padding: 0 1vh;

  }

  .seance2 p{
    font-size: 1rem ;
    padding-top: 1vh;
    padding-bottom: 1vh;
  }


  .begete {
    height: 90vh;
    width: 95vh;
  }

  img {
    max-height: 100vh;
    height: 1000px;
    align-items: center;
    padding: 0px;
  }
  .seance {
    height: 90vh;
    width: 90vh;
  }
  .seances li {
    list-style: none;
    height: 20vh;
    width: 18vh;
    margin: 1vh;
    background-color: rgba(101, 145, 250, 0.575);
    font-size: 0.8rem;
    display: flex;
    justify-content: center;
    align-items: center;
    
  }

  .seances ul {
    
    display: flex;
    justify-content: center;
    padding-top: 0px;
   
  
  }

.seances li {

    cursor: pointer;
    animation: alternate-reverse;
}