Set score text-align: center;
Set score text-align: center;

.score {
height: 20px;
width: 30px;
display: inline-block;
font-size: 18px;
text-align: center;
box-shadow: 0px 0px 1px 1px #000;
margin: 2px;
color: black;
}

zptec/convnetjs,zptec/convnetjs