body                {color: #EEE; background-color: #111; }


a                   {color: #AFF; }
a:hover             {color: #AFF; background-color: #000; }



table.t_side        {background-color: #666; }  

td.td_nav           {background-color: #444; filter: grayscale(80%); opacity: 1;  }


img.img_op, 
img.img_v, 
img.img_h           {opacity: 0.5; }

img.img_op:hover, 
img.img_v:hover, 
img.img_h:hover     {opacity: 0.8; }

img.imgs            {border: 0.4vw solid #222; background-color: #444; }