body { /*margin-left:30px; margin-right:100px; margin-top:20px;*/
	background-color:#D0D0D0; 
   }
  /*button {width:40px}*/
  /*body{font-family: monospace; font-size:14pt;}*/
   input {width:60px}
   .sf {font-size:12px}
   .b0 { border-radius: 8px; background: #F0DADA; width:50px }
   .b1 { border-radius: 8px; background: #F0DADA; width:80px }
   .b2 { border-radius: 8px; background: #F0DADA; width:130px }
   .b3 { border-radius: 8px; background: #F0DADA; width:190px }
   .b4 { border-radius: 8px; background: #F0DADA; width:200px }
   .b5 { border-radius: 8px; background: #F0DADA; width:270px }