h1.top   {text-align: center}
h1   {color: brown}
h2.top   {text-align: center}
h2   {color: brown}
h3   {color: brown}

body {background: #FFDDBB}
td.no {background: #EECCAA; text-align: center}

span.topic {color: brown}
span.ref   {color: green}
span.code  {color: green}
span.emph  {color: red}
span.warn  {color: red; font-size: 180%}