.contenu {
  position: relative;
  /*width: 50%;*/
  padding: 0;
}

.tableau {
  padding: 1rem!important;
}

.image {
  display: block;
  width: 100%;
  height: auto;
}

.hover {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  height: 100%;
  width: 100%;
  opacity: 0;
  transition: .5s ease;
  background-color: #43454e;
}

.hover_2 {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  height: 100%;
  width: 100%;
  opacity: 0;
  transition: .5s ease;
  background-color: #4a62d2;
}

.contenu:hover .hover {
  opacity: 0.7;
  /*width: 50%;*/
  /*height: 50%;*/
}

.contenu:hover .hover_2 {
  opacity: 0.7;
  /*width: 50%;*/
  /*height: 50%;*/
}

.texte {
  color: #fff;
  font-size: 30px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}