div.grid-gallerie {
    display: grid;
    grid-template-columns: repeat(4,22%); 
    grid-auto-flow: dense;
    gap: 1%;
    justify-content:center;
    max-width:1200px;
    margin-left:auto;
    margin-right:auto;
   
    visibility: visible;
  
} 

.grid-gallerie img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    padding: 0px;
    margin:0px;
    max-width:none;
}

.grid-gallerie img.gross {
    grid-column: span 2;
    grid-row: span 2;
    background-color:red;
 
}
.grid-gallerie img.hoch {
    grid-row:  span 3;
    grid-column: span 1;
  }

.grid-gallerie img.breit {
    grid-row: span 1;
    grid-column: span 2;
   
}

@media all and (max-width:450px){
    
    div.grid-gallerie {
       grid-template-columns: auto;  
       grid-template-rows: auto;
        margin-bottom:200px;
    }      
}

.grid-gallerie .thumb:hover {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
   filter: brightness(110%);
}