jarrive pas a mettre mes 3 div en flex
#conteneur{ border: 2px solid #444;
display: flex;
/*flex-direction: row-reverse;*/
/*flex-wrap: wrap;*/
/* justify-content: space-around;*/
/*align-items: stretch;*/
}
.element{ width: 150px;
height: 400px;
}
.element:nth-child(1){ background-color: blue;
}
.element:nth-child(2){ background-color: yellow;
}
.element:nth-child(3){ background-color: red;
}