PRE, TT, CODE { font-family: monospace }
BODY {
   font-family: "Segoe UI", Verdana, Arial, sans-serif;   /* see http://www.cssfontstack.com */
   max-width: 900px; margin: auto;                        /* added 9/03/20                   */
}
.h15 {line-height: 1.5 }
A:link { color: blue }
A:visited { color: purple }