h1{
  justify-content: center;
  text-align: center;
  font-weight : bold;
  font-family : Arial, Helvetica, sans-serif;
  font-size:25px;
  color:#428095;
  text-decoration: none;
  border-color: #428095;
  padding: 0 20px;
  border-radius: 10px;
  line-height: 3;
}
ul{

      justify-content: center;
  font-weight : bold;
  font-family : Arial, Helvetica, sans-serif;
  font-size:20px;
  text-decoration: none;
  padding: 10 20px;
  border-radius: 10px;
  color:#696868;
  margin:10px;
  list-style-type: none; 
}
p{
  justify-content: center;
  font-weight : bold;
  font-family : Arial, Helvetica, sans-serif;
  font-size:20px;
  text-decoration: none;
  padding: 40px 60px;
  border-radius: 10px;
  color:#696868;
  margin: 5% 40px;
}
hr{
    margin:20px;
}

.logo{
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo_item {
  width: 50% ;
  min-height: 300px;
  min-width: 744px;
}

.link{
  display: flex;
  justify-content:space-around;
  align-items: center;
  width:50%; 
  margin:0 auto;
}

.link_logo{
  max-height:50px;
}

.blanc{
  min-height:100px;
}


.navigation{
  margin: 0 ;
  padding: 0 ;
  list-style: none ;
  text-align: center ;
}

.navigation li{
    display:inline;
}

.navigation a{
    display:inline;
  justify-content: center;
  font-weight : bold;
  font-family : Arial, Helvetica, sans-serif;
  font-size:20px;
  color:#428095;
  text-decoration: none;
  border-color: #428095;
  padding: 0 20px;
  border-radius: 10px;
}

.concert{
    display:flex;
    justify-content :center;
    align-items:center;
    gap:400px;
}