.box{
    height: 377px;
    width: 378px;
    border: 2px solid black;
  
    margin: auto;
}

.black{
    height: 50px;
    width: 50px;
    background-color: black;
    float: left;
}
.white{
    height: 50px;
    width: 50px;
    background-color: white;
    float: left;
}
.ib{
    font-size: 30px;
    color: aliceblue;
    box-sizing: border-box;
    padding: 7px 00 00 9px;
  
}
.i{
   font-size: 30px;
    float: center;
    box-sizing: border-box;
    padding: 7px 00 00 9px;
}