Why have my font sizes stopped working

[heldenbrau]

My font sizes were working on my webpage.  I tried to change a font size and it didn't work, then I noticed that when I change any font sizes, they no longer change.  Everything else works, like alignment and div settings.  Just not font size.

 

body{
  padding:0px;
  font-family : Helvetica,Arial,sans-serif;
  margin-top:0px;
}

p.main {
  font-family:Helvetica,Arial,sans-serif;
  font-size:16pts;
  text-align:center;
}

p.text {
  font-family:Helvetica,Arial,sans-serif;
  font-size:16pts;
  text-align:justify;
}

a {
  font-family:Helvetica,Arial,sans-serif;
  font-size:20pts;
  text-align:center;
  }

h1{
  font-family:Helvetica,Arial,sans-serif;
  font-size:100pts;
  text-align:center;
}

h2{
  font-family:Helvetica,Arial,sans-serif;
  font-size:10pts;
  text-align:center;
}

li.main {
  font-family:Helvetica,Arial,sans-serif;
  font-size:20pts;
  font-weight:100;
  text-align:justify;
  }
  
li.text {
  font-family:Helvetica,Arial,sans-serif;
  font-size:16pts;
  font-weight:100;
  text-align:justify;
}

div#top{
  float:top;
  width:100%;
  padding:2px;
  border:1px solid #000;
}

div#left{
  float:left;
  width:36%;
  padding-left:40px;
  padding-right:5px;
  padding-top:0px;
  border:1px solid #000;
}

div#right{
  float:right;
  width:56%;
  padding-left:5px;
  padding-right:40px;
  padding-top:0px;
  border:1px solid #000;
}

[haku]

'pt' not 'pts'