code: public final T setStyle(String styleAttribute, String styleValue) {
  
      // Add style to style map
      Map<String, String> styleMap = getStyles();
      styleMap.put(styleAttribute, styleValue);
  
      // Serialize style string
      StringBuilder styleString = new StringBuilder();
      for (Map.Entry style : styleMap.entrySet()) {
        styleString.append(style.getKey());
        styleString.append(':');
        styleString.append(style.getValue());
        styleString.append(';');
      }
      setStyleString(styleString.toString());
      return (T)this;
    }
docs: Html "style" attribute. Sets single style attribute value.
  @param styleAttribute Style attribute name
  @param styleValue Style attribute value
  @return Self reference