channel link, channel language, channel copyright, channel managingEditor, channel webMaster, channel docs, channel lastBuildDate {
    display:none;
}
rss {
    font-family:Verdana, Arial, Helvetica, sans-serif;
    font-size:0.7em;
    line-height:130%;
    margin:1em;
}
<em>/* HEADER */</em>
<em>/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/</em>
channel title {
    display:block;
    padding:0.4em 0.2em;
    color:#FFF;
    border-bottom:1px solid black;
    font-weight:bold;
    font-size:140%;
    background-color:#4483C7;
}
channel description {
    display:block;
    float:left;
    font-size:130%;
    font-weight:bold;
    margin:0.5em;
}
<em>/* CONTENT */</em>
<em>/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/</em>
channel item {
    background-color:#FFFFEE;
    border:1px solid #538620;
    clear:both;
    display:block;
    padding:0 0 0.5em;
    margin:1em;
}
channel item title {
    background-color:#538620;
    border-bottom-width:0;
    color:#FFF;
    display:block;
    font-size:110%;
    font-weight:bold;
    margin:0;
    padding:0.3em 0.5em;
}
channel item description {
    display: block;
    float:none;
    margin:0;
    text-align: left;
    padding:0.2em 0.5em 0.4em;
    color: black;
    font-size:100%;
    font-weight:normal;
}
channel item link {
    color:#666;
    display:block;
    font-size:86%;
    padding:0 0.5em;
}
channel item pubDate {
    color:#666;
    display:block;
    font-size:86%;
    padding:0 0.5em;
}