.gallery-container{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 300px;
  /*padding: 10px;*/
  grid-gap: 20px;
}

.gallery__item{
  position: relative;
}

.gallery__img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery__tittle1{
  position: absolute;
  bottom: 0;
  color: white;
  background: linear-gradient(rgba(255,255,255,0),rgba(0,0,0,1));
  width: 100%;
  margin: 0;
}

.gallery__item:nth-child(3){
  grid-row-start: span 2;
}