body                {color: #999; background-color: #112; }

a                   {color: #08F; }
a:hover             {color: #08F; background-color: #000; }

table.t_side        {background-color: #223; }  

td.td_nav           {background-color: #334;  }

img.img_op, 
img.img_v, 
img.img_h           {opacity: 0.6; }

img.img_op:hover, 
img.img_v:hover, 
img.img_h:hover     {opacity: 0.9; }

img.imgs            {border: 0.4vw solid #000; background-color: #444; }