body {
    font-family: verdana, sans-serif;
}
a[href $=".pdf"],
a[href $=".doc"],
a[href $=".odt"] {
    padding-right: 24px;
    background-repeat: no-repeat;
    background-position: center right;
}
a[href $=".pdf"] {
    background-image: url("img/pdf.png");
}
a[href $=".doc"],
a[href $=".odt"] {
    background-image: url("/img/ooo-writer.png");
}