body {
    background: linear-gradient(to right, #4a4a4d, #6c6c74);
}

.bordure {
    border: 5px solid; 
    border-color: rgb(0, 0, 0);
    border-width: 0,25cm;
    }

    .bordure-N {
        border: 5px solid; 
        border-color: rgb(0, 0, 0);
        border-width: 0,25cm;
        }

    .image-row {
        justify-content: space-around;
        display: flex ;
        flex-wrap: wrap;
    }

.image-row img {
        width: 200px; 
        height: auto;
    }

.element {
        border-top: 10px #ffffff double;
        border-right: 10px #ffffff double;
        border-bottom: 10px #ffffff double;
        border-left: 10px #ffffff double;
        font-size: 30px;
        background-color: rgb(3, 3, 3);
        border-radius: 15px;
        box-shadow: 0px 0px 0px rgb(0, 0, 0);
        padding: 30px;
    }

    .x1{
        color: rgb(255, 255, 255)
    }