* {
  box-sizing: border-box;
}

@font-face { font-family: 'aclonica'; src: url('Aclonica.ttf'); } 
h1 {
   text-align: center;
   font-weight: 300;
   color: rgb(12, 11, 11);
   font-family: 'Roboto';
}

h1 span {
   font-weight: 600;
   font-family: 'Arial';
   paddingbottpom:0px;
  
}
head title{
 text-align: center;
 
} 
.bouton a {
  background-color: rgb(11, 109, 207);
  Color:white;
  font-weight: bold;
  padding: 10px 40px;
  border-radius: 3px;
  cursor: pointer; 
  text-decoration: none;
  transition: 0.4s;
}
.bouton a:hover {
  background-color: #a72b2b;
}
body {
   margin: auto;
   padding: auto;
   
   background:#6599ca;
}



.timeline {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  
}


.timeline::after {
  content: '';
  position: absolute;
  width: 6px;
  background-color: rgb(14, 49, 85);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -3px;
}

.container {
  padding: 10px 40px;
  position: relative;
  background-color: inherit;
  width: 50%;
}

.container::after {
  content: '';
  position: absolute;
  width: 25px;
  height: 25px;
  right: -17px;
  background-color: rgb(80, 47, 214);
  border: 4px solid rgb(7, 16, 56);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
}

.left {
  left: 0;
}

.right {
  left: 50%;
}

.left::before {
  content: " ";
  height: 0;
  position: absolute;
  top: 22px;
  width: 0;
  z-index: 1;
  right: 30px;
  border: medium solid white;
  border-width: 10px 0 10px 10px;
  border-color: transparent transparent transparent rgb(205, 205, 226);
}

.right::before {
  content: " ";
  height: 0;
  position: absolute;
  top: 22px;
  width: 0;
  z-index: 1;
  left: 30px;
  border: medium solid white;
  border-width: 10px 10px 10px 0;
  border-color: transparent rgb(205, 205, 226) transparent transparent;
}


.right::after {
  left: -16px;
}


.content {
  padding: 20px 30px;
  background-color: rgb(205, 205, 226);
  position: relative;
  border-radius: 6px;
  
}


@media screen and (max-width: 700px) {

  .timeline:after {
    left: 31px;
  }
  header{
     display:none;
  }

  .container {
    width: 100%;
    padding-left: 70px;
    padding-right: 25px;
  }


  .container::before {
    left: 60px;
    border: medium solid white;
    border-width: 10px 10px 10px 0;
    border-color: transparent rgb(202, 139, 139) transparent transparent;
  }
  .right {
    left: 0%;
  }
   .left::after, .right::after {
    left: 15px;
  }
}



.bouton   button{
  background-color: rgb(11, 109, 207);
  color:white;
  font-weight: bold;
  padding: 15px 40px;
  border-radius: 5px;
  cursor: pointer; 
  text-decoration: none;
  transition: 0.4s;
}
.bouton  button:hover {
  background-color: #03042c;
}



header{
  margin-left:0;
 padding-left:0;
 position: fixed;
  overflow: auto;
  min-width: 40%px; 
  max-width: 50%; 
  margin-left: 0%;
  min-height: 0%;
  max-height: 100%;
}
/*épaisseurs  de la barre*/
::-webkit-scrollbar {
    width: 12px;
}
/*barre sans les flèches*/
::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px rgba(10, 8, 8, 0.3); 
    border-radius: 0px;
    background: rgb(255, 255, 255);
}
/*pour la partie dans la barre*/
::-webkit-scrollbar-thumb {
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.5);
    background-color:rgb(5, 45, 85);
}
 
header #Brand{
  opacity: 0,5;
  margin:0px;
  padding:0px;
  margin-bottom:5px;
}

header nav p a{
  margin: 0px;
  padding: 0px;
  position:left;
  width:100%;
  height: 40px;
  background-color:rgb(5, 45, 85);
  line-height: 40px;
  display:block;
 
}




header nav p a{
  display:block;
  color:white;
 margin-top: 0 px;
 margin-left:px;
 text-align: center;
 
}
header nav  p a:hover{
  background-color:rgb(11, 109, 207); ;
  opacity: 0.5;
  transition:0.5s;

}