.corner-ribbon-wrapper {

    position: fixed;
    overflow: hidden;
    top: 0;
    z-index: 9999;
    pointer-events: none;

}

.corner-ribbon {

    position: absolute;

    padding: 2px 0px;

    background-color: #a00;

    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-weight: 700;

    z-index: 9999;
    pointer-events: auto;

    /* Dégradé : transparent en haut, un peu moins en bas */
    background-image: -webkit-gradient(linear, left top, left bottom, from(rgba(0, 0, 0, 0)), to(rgba(0, 0, 0, 0.15)));
    background-image: -webkit-linear-gradient(top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.15));
    background-image: -moz-linear-gradient(top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.15));
    background-image: -ms-linear-gradient(top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.15));
    background-image: -o-linear-gradient(top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.15));
    background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.15));

    /* Ombre portée */
    -webkit-box-shadow: 0 2px 3px 0 rgba(0, 0, 0, 0.5);
    -moz-box-shadow: 0 2px 3px 0 rgba(0, 0, 0, 0.5);
    box-shadow: 0 2px 3px 0 rgba(0, 0, 0, 0.5);

}

.corner-ribbon a {

    color: #fff;
    text-decoration: none;
    text-shadow: 0 -1px rgba(0, 0, 0, 0.5);
    text-align: center;

    display: inline-block;
    padding: 2px 0;

    /* Effet en bordure */
    border-width: 1px 0;
    border-style: dotted;
    border-color: #fff;
    border-color: rgba(255, 255, 255, 0.7);

}

.corner-ribbon-wrapper.right {

    right: 0;

}