body {
    display: flex;
    justify-content: center;
}
#root {
    
    text-align: center;
}
#game {
   padding: 5px;
    display: grid;
    grid-template-columns: repeat(20, 20px);
}
.square {
    min-width: 20px;
    min-height: 20px;
    border: 1px solid black;
}
.start {
    background: rgb(3, 248, 15);
}
.finish {
    background: rgb(255, 1, 1);
}
.empty {
    background: rgb(251, 253, 251);
}
.passed {
    background: rgb(244, 248, 3);
}
.block {
    background: rgb(5, 5, 5);
}