body{
    min-height: 700px;
    min-width: 900px;
    height: 100vh;
    margin: 0;
    background-color: black;
    display: flex;
    background-position: center;
    background-size: cover;
    background-image: url(pictures/1282257a.jpg);
    animation: 100s ease-in-out infinite opacity ;
  
}


@keyframes opacity{
    from{

        background-position: left;
    
        
    }
    50%{
        
        background-position: right;
       
       
    }

    to{

        background-position: left;
    
        
    }

 
}

header{
    display: flex;
    justify-content: center;
    min-height: 700px;
    height: 100vh;
    animation: 3s ease-in-out  header_anim ;
    justify-content: center;

}

article{
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: white;
  text-align: center;
  font-size: 3em;
  font-family:  'Arial Narrow Bold', sans-serif;
  min-height: 700px;
    height: 100vh;
    flex: 1;
}


footer{
    margin: 0 10px;
    display: flex;
    flex-direction: column-reverse;
    justify-content: space-around;
    bottom: 0;
    left: 0;
    width: auto;
    min-height: 700px;
    height: 96vh;
    font-size: 1em;
}

footer p{
    margin: 4px 0;
}
button{
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: auto;
    height: auto;
    border: none;
    cursor: pointer;
    color: white;
    background-color: rgba(255, 255, 255, 0);
}


 section{
    margin: 0;
    width: 50px;
    height: 50px;

}



.png{
    background-position: center;
    background-size: cover;

}


a{
    color: white;
}

#img1_1{
    background-image: url(pictures/icons8-google-maps.png);
}

#img1_2{
    background-image: url(pictures/icons8-information.png);
}

#img1_3{
    background-image: url(pictures/icons8-réseau.png);
}


#img1_5{
    background-image: url(pictures/icons8-message-téléphonique.png);
}


#img1_4{
    background-image: url(pictures/icons8-envoyer.png);
}



@media (max-width:700px),(orientation: portrait){

    body{
        min-width: auto;
        min-height: 600px;
        flex-direction: column;
        background-image: url(pictures/portrait.jpg);
        background-position: center;
        background-size: cover;
        animation: none;
    }

    header{
        min-height: 30vh;

    }

    article{

        min-height: 40vh;
  
    }

    footer{

        min-height: auto;
        margin: 0 1px;
        font-size: 0.8em;
        background-blend-mode: darken;
    }


    p{
        margin: 2px;
    }

}