.ma-banniere {
   min-width: 100%;
}
.container-banner .banner-overlay {
   height: 55vh;
}
.container-banner .banner-overlay .overlay {
  -webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-box-align:center;-ms-flex-align:center;
  -webkit-box-pack:center;-ms-flex-pack:center;align-items:center;
  background-color:rgba(0,0,0,.01);
  display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-direction:column;flex-direction:column;height:100%;
  justify-content:center;padding:1em;text-align:center
}