body{
background-color: #fff;
background-size: 8px 8px, 8px 8px;
background-position: center, center;
background-image: linear-gradient(#ebf4f9 1px, transparent 1px),linear-gradient(90deg, #ebf4f9 1px, transparent 1px);
}
.game {
margin: 3em auto;
padding: 0 10px;
max-width: 400px;
}
.timer {
width: 100px;
text-align: center;
margin: 0 auto;
}