/* https://www.plickers.com/PlickersCards_2up_1-63.pdf */
table.plicker td { background-color: black; }
table.plicker td.c22 { background-color: white; }       /* center is always white */
table.plicker td.c43 { background-color: white; }       /* bottom, right of center is always white */

/*table.user00 { filter: drop-shadow(0 0 10px red); }*/
table.user00 { opacity: 5% }

table.user01 td.c41 { background-color: white }
table.user02 td.c20 { background-color: white }
table.user03 td.c20, table.user03 td.c41, table.user03 td.c42 { background-color: white }
table.user04 td.c10 { background-color: white }
table.user05 td.c10, table.user05 td.c41, table.user05 td.c42 { background-color: white }
table.user06 td.c10, table.user06 td.c20, table.user06 td.c42 { background-color: white }
table.user07 td.c10, table.user07 td.c20, table.user07 td.c41 { background-color: white }
table.user08 td.c02 { background-color: white }
table.user09 td.c02, table.user09 td.c41, table.user09 td.c42 { background-color: white }

table.user10 td.c02, table.user10 td.c20, table.user10 td.c42 { background-color: white }
table.user11 td.c02, table.user11 td.c20, table.user11 td.c41 { background-color: white }
table.user12 td.c02, table.user12 td.c10, table.user12 td.c42 { background-color: white }
table.user13 td.c41, table.user13 td.c10, table.user13 td.c02 { background-color: white }
table.user14 td.c02, table.user14 td.c10, table.user14 td.c20 { background-color: white }
table.user15 td.c02, table.user15 td.c10, table.user15 td.c20, table.user15 td.c41, table.user15 td.c42 { background-color: white }
table.user16 td.c03 { background-color: white }
table.user17 td.c03, table.user17 td.c41, table.user17 td.c42 { background-color: white }
table.user18 td.c42, table.user18 td.c20, table.user18 td.c03 { background-color: white }
table.user19 td.c41, table.user19 td.c03, table.user19 td.c20 { background-color: white }

table.user20 td.c42, table.user20 td.c10, table.user20 td.c03 { background-color: white }
table.user21 td.c41, table.user21 td.c10, table.user21 td.c03 { background-color: white }
table.user22 td.c03, table.user22 td.c10, table.user22 td.c20 { background-color: white }
table.user23 td.c41, table.user23 td.c42, table.user23 td.c20, table.user23 td.c10, table.user23 td.c03 { background-color: white }
table.user24 td.c42, table.user24 td.c02, table.user24 td.c03 { background-color: white }
table.user25 td.c41, table.user25 td.c02, table.user25 td.c03 { background-color: white }
table.user26 td.c02, table.user26 td.c03, table.user26 td.c20 { background-color: white }
table.user27 td.c02, table.user27 td.c03, table.user27 td.c20, table.user27 td.c41, table.user27 td.c42 { background-color: white }
table.user28 td.c10, table.user28 td.c02, table.user28 td.c03 { background-color: white }
table.user29 td.c02, table.user29 td.c03, table.user29 td.c10, table.user29 td.c41, table.user29 td.c42 { background-color: white }

table.user30 td.c02, table.user30 td.c03, table.user30 td.c10, table.user30 td.c20, table.user30 td.c42 { background-color: white }
table.user31 td.c02, table.user31 td.c03, table.user31 td.c10, table.user31 td.c20, table.user31 td.c41 { background-color: white }
table.user32 td.c24 { background-color: white }
table.user33 td.c24, table.user33 td.c41, table.user33 td.c42 { background-color: white }
table.user34 td.c20, table.user34 td.c24, table.user34 td.c42 { background-color: white }
table.user35 td.c20, table.user35 td.c24, table.user35 td.c41 { background-color: white }
table.user36 td.c10, table.user36 td.c24, table.user36 td.c42 { background-color: white }
table.user37 td.c10, table.user37 td.c24, table.user37 td.c41 { background-color: white }
table.user38 td.c10, table.user38 td.c20, table.user38 td.c24 { background-color: white }
table.user39 td.c10, table.user39 td.c20, table.user39 td.c24, table.user39 td.c41, table.user39 td.c42 { background-color: white }

table.user40 td.c02, table.user40 td.c24, table.user40 td.c42 { background-color: white }
table.user41 td.c02, table.user41 td.c24, table.user41 td.c41 { background-color: white }
table.user42 td.c02, table.user42 td.c20, table.user42 td.c24 { background-color: white }
table.user43 td.c02, table.user43 td.c20, table.user43 td.c24, table.user43 td.c41, table.user43 td.c42 { background-color: white }
table.user44 td.c02, table.user44 td.c10, table.user44 td.c24 { background-color: white }
table.user45 td.c02, table.user45 td.c10, table.user45 td.c24, table.user45 td.c41, table.user45 td.c42, table.user45 td.c43 { background-color: white }
table.user46 td.c02, table.user46 td.c24, table.user46 td.c42, table.user46 td.c20, table.user46 td.c10 { background-color: white; }
table.user47 td.c02, table.user47 td.c10, table.user47 td.c20, table.user47 td.c24, table.user47 td.c41 { background-color: white }
table.user48 td.c03, table.user48 td.c24, table.user48 td.c42 { background-color: white }
table.user49 td.c03, table.user49 td.c24, table.user49 td.c41 { background-color: white }

table.user50 td.c03, table.user50 td.c20, table.user50 td.c24 { background-color: white }
table.user51 td.c03, table.user51 td.c20, table.user51 td.c24, table.user51 td.c41, table.user51 td.c42 { background-color: white }
table.user52 td.c03, table.user52 td.c10, table.user52 td.c24 { background-color: white }
table.user53 td.c03, table.user53 td.c10, table.user53 td.c24, table.user53 td.c41, table.user53 td.c42 { background-color: white }
table.user54 td.c03, table.user54 td.c10, table.user54 td.c20, table.user54 td.c24, table.user54 td.c42 { background-color: white }
table.user55 td.c03, table.user55 td.c10, table.user55 td.c20, table.user55 td.c24, table.user55 td.c41 { background-color: white }
table.user56 td.c02, table.user56 td.c03, table.user56 td.c24 { background-color: white }
table.user57 td.c02, table.user57 td.c03, table.user57 td.c24, table.user57 td.c41, table.user57 td.c42 { background-color: white }
table.user58 td.c02, table.user58 td.c03, table.user58 td.c20, table.user58 td.c24, table.user58 td.c42 { background-color: white }
table.user59 td.c02, table.user59 td.c03, table.user59 td.c20, table.user59 td.c24, table.user59 td.c41 { background-color: white }

table.user60 td.c02, table.user60 td.c03, table.user60 td.c10, table.user60 td.c24, table.user60 td.c42 { background-color: white }
table.user61 td.c02, table.user61 td.c03, table.user61 td.c10, table.user61 td.c24, table.user61 td.c41 { background-color: white }
table.user62 td.c02, table.user62 td.c03, table.user62 td.c10, table.user62 td.c20, table.user62 td.c24 { background-color: white }
table.user63 td.c02, table.user63 td.c03, table.user63 td.c10, table.user63 td.c20, table.user63 td.c24, table.user63 td.c41, table.user63 td.c42 { background-color: white }

/*
          A

   00 01 02 03 04
   10 11 12 13 14
D  20 21    23 24  B
   30 31 32 33 34
   40 41 42    44

         C

*/