html {
    margin: 0;
}

h1 {
    font-size: 0.5rem;
}

.card-deck .card {
    -ms-flex: 1 0 0%;
    flex: 1 0 0%;
    margin-right: 15px;
    margin-bottom: 0;
    margin-left: 15px;
    background-color: #596C84;
    /*font-family: 'Times New Roman', Times, serif;*/
}

span {
    color: #f9f9f9;
}

.video-conteneur {
    position: relative;
    padding-bottom: 57.15%;
    height: 0;
    overflow: hidden;
}

.video-conteneur iframe,
.video-conteneur object,
.video-conteneur embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100.10%;
    height: 99%;
}

#monImage {
    width: 25%;
    height: auto;
}

.btn-secondary:hover {
    background-color: #A93818;
    box-shadow: 4px 6px 2px 1px rgba(87, 84, 76, 0.2);
}

.box_1 {
    margin-left: 40px;
}