BODY {background-color:#FFFBFE}                /* fefeff */
 .pagetop {background-color:#005273}
 .pagetop TD:nth-child(2) {font:normal 130% capriola,sans-serif; 
                           color:#FFC; text-shadow:1px 1px 0 #000} 
  SUP {font: bold 70% arial,sans-serif; vertical-align:.7em}

/* colored text */
  VAR {color:#00C; font:normal 105% arial}     /* blue  */
  EM  {color:#C03; font:normal 105% arial}     /* red   */
  KBD {color:#060; font:normal 105% arial}     /* green */
/*-- also colored text --*/
 .bl {font: normal 100% arial,sans-serif; color: #00C}   /* also VAR */
 .ma {font: normal 100% arial,sans-serif; color: #C03}   /* also EM  */
 .gr {font: normal 100% arial,sans-serif; color: #093}   /* also KBD */
  
 .title {font-weight:bold; font-size:140%; color:#936; text-align: center}
 .upexp {vertical-align:.5em}     /* power of a power */

 .purhdr {font-weight: bold; font-size: 120%; color: #608}