.blhk {
        display: inline-block;
        line-height: 25px;
        width: 25px;
        color: white;
        font-size: 23px;
        height: 25px;
        background-color: #DC143C;
        border-radius: 50%;
        margin: 2px 0;
    }

#drawing-table {
    border-collapse: collapse;
    width: auto;
}
#drawing-table td {
    border: 1px solid #4169E1;
    text-align: center;
    padding: 0;
    width: 20px;
}