section.spair{
    display: flex;
    flex-direction: row;
}

section.simpair{
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
}

img.title{
    position: relative;
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

h1{
    position: absolute;
    color: #ff7900;
    font-size: 200%;
    background-color: #000000;
    top: 29%;
    left: 5%;
    padding: 40px;

    display: block;

    }

img.org, img.val{
    width: 500px;
    height: 500px;
}

img.val{
    margin-bottom: 100px;
}

h2{
    color: #ff7900;
    font-size: 50px;

}

h2.hpair{
    display: flex;
    flex-direction: row-reverse;
}

body{
    margin: 0;
    padding: 0;
    line-height: 1.6;
    font-family: arial, sans-serif;
}

.spair div, .simpair div{
    margin-right: 60px;
    margin-left: 60px;
    width: 100%;
}

img.titre{
    width: 1010px;
    height: auto;
}

main{
    width: 80%;
    margin: auto;
}

@media only screen and (max-width: 1300px) {
    .simpair, .spair {
        flex-wrap: wrap;
        justify-content: center;
    }
    .himpair {
            text-align: center;
        }
    .hpair {
            justify-content: center;
        }    
    .simpair div{
        margin-top: 50px;
    }
    .spair div{
        margin-bottom: 50px;
    }

}
@media only screen and (max-width: 710px) {
    h2 {
        font-size: 35px;
    }
    .simpair div{
        margin-top: 0px;
    }
}