* {box-sizing: border-box;}
.column {float: left;width: 33%;padding: 0 10px;}
.row {margin: 0 -5px;}
.row:after {content: "";display:table;clear: both;}
.brhaut {height: 40px;}

.card1 {
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
    padding: 16px;
    background-color: #f1f1f1;
    height: 430px;
    position: relative;
    overflow: hidden;
}
.card2 {
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
    padding: 16px;
    background-color: #f1f1f1;
    height: 430px;
    display:none;
    position: relative;
    overflow: hidden;
}

.ribbon-wrapper {
  width: 85px;
  height: 85px;
  overflow: hidden;
  position: absolute;
  top: -3px;
  right: -3px;
  z-index: 10;
}
.ribbon {
  font-family: sans-serif;
  font-weight: bold;
  font-size: 13px;
  color: #fff;
  text-align: center;
  text-shadow: rgba(255,255,255,0.5) 0px 1px 0px;
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
  position: relative;
  padding: 7px 0;
  left: -5px;
  top: 15px;
  width: 120px;
  background-color: #dc3545;
  background-image: linear-gradient(to bottom, #dc3545, #b02a37); /* Leger dégradé */
  box-shadow: 0px 0px 3px rgba(0,0,0,0.3);
}

.pastille {position:absolute;top:-20px;left:-1px;width:100%;}
@media screen and (max-width: 900px)
{
.column {width: 100%;display: block;margin-bottom: 20px;}
.pastille {position:absolute;top:+10px;left:-15px;width:100%;}
.brhaut {height: 5px;}
.card1 {height: auto;display:none;}
.card2 {height: auto;display:block}
}