/*black*/
:root{
--c0:#fff;
--c1:#eee;
--c2:#ddd;
--c4:#bbb;
--c7:#999;
--ca:#777;
--cb:#444;
--cd:#222;
--ce:#111;
--cf:#000;
--b0:rgba(255,255,255,0);
--b1:rgba(255,255,255,0.1);
--b2:rgba(255,255,255,0.2);
--b4:rgba(255,255,255,0.4);
--b5:rgba(255,255,255,0.5);
--b6:rgba(255,255,255,0.6);
--b7:rgba(255,255,255,0.7);
--b8:rgba(255,255,255,0.8);
--b9:rgba(255,255,255,0.9);
--b10:rgba(255,255,255,1);
--w0:rgba(0,0,0,0);
--w1:rgba(0,0,0,0.1);
--w2:rgba(0,0,0,0.2);
--w4:rgba(0,0,0,0.4);
--w5:rgba(0,0,0,0.5);
--w6:rgba(0,0,0,0.6);
--w7:rgba(0,0,0,0.7);
--w8:rgba(0,0,0,0.8);
--w9:rgba(0,0,0,0.9);
--w10:rgba(0,0,0,1);}