:root{--table-size:min(50vw,200px)}.pps .btn_difficulty{margin-left:0;margin-bottom:20px}.game{table-layout:fixed;width:var(--table-size);min-height:var(--table-size);border:solid 4px #000}.game .row .cell{border:solid 1px #000;width:calc(var(--table-size)/6);height:calc(var(--table-size)/6);min-height:calc(var(--table-size)/6)}.game .row .x{background-color:#000;border-color:#000}.game .row .A{background-color:red;border-color:red}.game .row .B{background-color:#ff0;border-color:#ff0}.game .row .C{background-color:#00008b;border-color:#00008b}.game .row .D{background-color:#006400;border-color:#006400}.game .row .E{background-color:ivory;border-color:ivory}.game .row .F{background-color:#8b008b;border-color:#8b008b}.game .row .G{background-color:#f0f;border-color:#f0f}.game .row .H{background-color:brown;border-color:brown}.game .row .I{background-color:gold;border-color:gold}.game .row .J{background-color:skyblue;border-color:skyblue}.game .row .K{background-color:#00ff7f;border-color:#00ff7f}.game .row .L{background-color:orange;border-color:orange}.game .row .M{background-color:#f0f8ff;border-color:#f0f8ff}.game .row .N{background-color:#7fffd4;border-color:#7fffd4}