body{
    margin: 0;
    width: 100%;
}

header{
    display: flex;
    justify-content: flex-start;
    align-items: center;
    justify-content: center;
    position: fixed;
    height: 5vh;
    width: 100%;
    z-index: 9999;
    background-color: #ffffffba;
}
.headerimg{
    height: 5vh;
}

.Secobjet{
    display: flex;
    width: 100%;
    height: 100%;
}
.divObjet{
    position: relative;
    height: 100%;
    width: 100vh;
    flex: 1 1 0;
}
.divObjet:hover{
    flex-grow: 1.3;
}
.img{
    object-fit: cover;
    height: 100%;
    width: 100%;
}

.link{
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
}

@media (max-width : 1000px){
    .secObjet{
        display: flex;
        flex-direction: column;
        width: 100%;
        height: 100%;
    }
    .divObjet{
        background-color: #0000;
        position: relative;
        width: 100%;
        height: 45%;
        margin: 0;
    }
}