.parent {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(6, 1fr);
    gap: 8px;
}
    
.div1 {
    grid-row: span 2 / span 2;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div2 {
    grid-column-start: 1;
    grid-row-start: 3;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div3 {
    grid-column-start: 1;
    grid-row-start: 4;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div4 {
    grid-column-start: 1;
    grid-row-start: 5;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div5 {
    grid-column: span 3 / span 3;
    grid-row: span 2 / span 2;
    grid-column-start: 2;
    grid-row-start: 1;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div6 {
    grid-column: span 3 / span 3;
    grid-column-start: 2;
    grid-row-start: 3;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div7 {
    grid-column: span 3 / span 3;
    grid-row: span 2 / span 2;
    grid-column-start: 2;
    grid-row-start: 4;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div8 {
    grid-column-start: 5;
    grid-row-start: 1;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div9 {
    grid-row: span 2 / span 2;
    grid-column-start: 5;
    grid-row-start: 2;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div10 {
    grid-column-start: 5;
    grid-row-start: 4;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div11 {
    grid-column-start: 5;
    grid-row-start: 5;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div12 {
    grid-column-start: 5;
    grid-row-start: 6;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}

.div13 {
    grid-column: span 3 / span 3;
    grid-column-start: 2;
    grid-row-start: 6;
border:rgb(139, 139, 139) 5px solid;
    background-color: rgba(0,0,0,0.5);
}