*{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.box{
   background-color: rgb(255, 255, 255);
    display: grid;
    place-items: center;
    height: 100px;
    width: 100px;
   /* background-size: contain;*/

}

#board{
    background-color: rgb(0, 0, 0);
    width: 300px;
    height: 300px;
    display: grid;
    grid-column-gap: 2px;
    grid-row-gap: 2px;
     grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    margin: auto;

}


#rejouer {
display: block;
margin: auto;
margin-top: 1.5rem;
}