div.contain{margin:1em 0em 32em 3em;width:40em}
h1{font-size:150%;color:maroon}
p.topic{font-size:110%;font-weight:bold;color:green}
p.teacher{font-size:110%;font-weight:bold;color:blue}
p.join{font-size:100%;font-weight:bold;color:purple}
p.feedback{font-size:100%;font-weight:bold;margin-top:1em}