body{
    margin: 0px;
}

.contenu_centrer{
    margin: 0px auto;
    width: 1170px;
}

h1{
    font-size: 64px;
    margin: 0px 0px 10px 0px;
}


header nav{
    
    height: 50px;
    display: flex;
    justify-content: space-between;
}

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

header .logo img{
    width: 120px;
}

header .liens{
    display: flex;
    align-items: center;
    

}

header .liens a {
    text-decoration: none;
    color: #000;
    margin-left: 40px;
    
}

header .liens a.donate{
    background-color: blue;
    color: #fff;
    border-radius: 5px;
    padding: 3px 10px;
}

main {
                              
}

main section.entete{
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: white;
    font-family: "heebo", sans-serif;
    

    position: relative;
    background-image: url("../images/entete.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    height: 600px;  
}

main section.entete * {
    z-index: 20;
}

main section.entete p {
    margin: 0px;
}

main section.entete .filtre {
    position: absolute;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.15);
    z-index: 10;
}

main section.entete div.bts{
    margin-top: 25px;

}

main section.entete a.bt {
    border-radius: 5px;
    text-decoration: none;
    padding: 4px 35px ;
    font-weight: bold;
    border: 2px solid #fff;
    margin-right: 10px;
}

main section.entete a.download {
    background-color: #fff;
    color: blue;
    transition: all 0.5s;
}

main section.entete a.download:hover{
    background-color: blue;
    color: white;
}

main section.entete a.new{
    color: white;
}

main section.entete a.new:hover{
    background-color: white;
    color: blue;
    transition: all 0.5s;
}