.choix {
   list-style-type: none;
   display: flex;
   clear: both;
   flex-flow: row wrap;
   justify-content: space-around;
   padding: 0;
   /*sinon décalage comme une marge à gauche*/
}

.choix a p {
   margin: 0px;
   padding: 5px;
}

.choix a {
   display: block;
   padding: 3px;
   color: #212121;
   background-color: #dddddd;
   text-decoration: none;
   font: 15px Segoe UI, Verdana, Geneva, sans-serif;
   font-weight: 500;
   transition: background-color ease-out 0.3s;
   transition: filter ease-out 0.3s;
   width: 200px;
   height: 210px;
   margin: 20px 20px 20px 20px;
   filter: drop-shadow(2px 2px 2px #797979);
}

.choix a:hover {
   /*color: #fff;*/
   background-color: #ededed;
   filter: drop-shadow(2px 2px 6px #484848);
}

.image-illustration {
   float: left;
   margin-left: 30px;
   margin-right: 30px;
}

.texte-illustration {
   font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
   color: #444;
   font-size: 30px;
   margin-left: 50px;
   margin-top: 50px;
}