Not working in IE6

[dsgncreative]

Is there anything in this code that would make the site break in IE6? Looks great in IE7, Firefox & Safari...

/* typography.css */
body {
font : 72%/2.0 "Lucida Grande", "Lucida Sans Unicode",Verdana, sans-serif; color : #666; }


h2, h3, h4, p, ul, blockquote {
margin : 10px;
}


p {
font-size : 110%;
margin-left: 50px;
padding-bottom: 15px;
}

p + p {
font-size : 110%;
}

li {
font-size: 110%;
}


#contact_info p {
color: #C2A362;
line-height: 2.0em;
margin-top: 0;
padding: 0;
text-align: center;
}


h2 {
font : 150% Verdana, Arial, Helvetica, sans-serif;
font-weight : normal;
color: #cc9933;
margin-top: 0px;
padding-top: 0px;
}


h3 {
font : 150% Verdana, Arial, Helvetica, sans-serif;
font-weight : normal;
color: #cc9933;
margin-top: 0px;
padding-top: 0px;
}


p + h3 {
margin-top: 25px;
padding-top: 0px;
}



/*h3 {
margin-bottom : .25em;
font : 120% Verdana, Arial, Helvetica, sans-serif;
font-weight : bold;
color : #246f6f; }*/


h4 {
font : 95%/2.0 "Lucida Grande", "Lucida Sans Unicode",Verdana, sans-serif;
color : #999;
margin-top: 25px;
color:#666;
}

h4 a {
font-weight:bold;
}



.about_us {
font-size: 110%;
color: #CC9933;
}


li > h4 { margin-left : 0;
}


div#site_info p {
color : #333; }


li > p { margin-left : 0; }


a:link, a:visited {
text-decoration : none; }


a:link, a:visited {
color : #cc9933; }


ul#nav_tools a {
color : #fff; }


#copyright {
color: #666666;
font-size : 80%;
}

#copyright a {
color: #666666;
}

[WebJoel]

p + h3 {
margin-top: 25px;
padding-top: 0px;
} I do not recognize this... what is this for?
If you're styling for "p" and "h3", you seperate with a comma. And since h3 cannot exist inside of a "p", I know that this isn't the intent..