phax/ph-cssを使う

phax/ph-css の使い方

// parsing css and get CSSOM
final CascadingStyleSheet css = CSSReader.readFromString(
                ".index h1,\n" +
                ".index h2,\n" +
                ".index h3,\n" +
                ".index h4,\n" +
                ".index h5,\n" +
                ".index h6 {\n" +
                "    font-family: \"ヒラギノ明朝 ProN W3\", \"HiraMinProN-W3\", serif;\n" +
                "    font-size: large;\n" +
                "}", ECSSVersion.CSS30);

// writing css
final String writtenCss = new CSSWriter(ECSSVersion.CSS30).getCSSAsString(css);

便利