h1 {color: white; background: darkblue}
h2 {color: white; background: blue}
 
code {color: #9900FF; background: #DDDDDD; font-weight: bold}
pre  {color: darkblue; background: #DDDDDD; font-weight: bold}
em  {color: red; font-style: italic}
 
body {background-color: white}
body {bgcolor: white}
P {background: white}

textarea {font-family: monospace; font-weight: bold}
 

.interactive_program {background: white}
.interactive_program {color: green}
 
.list {background: #CCCCFF}