code: @Nullable
    public static CascadingStyleSheet readFromString (@Nonnull final String sCSS, @Nonnull final ECSSVersion eVersion)
    {
      return readFromStringReader (sCSS, new CSSReaderSettings ().setCSSVersion (eVersion));
    }
docs: Read the CSS from the passed String using a character stream. An eventually
  contained <code>@charset</code> rule is ignored.
  
  @param sCSS
  The source string containing the CSS to be parsed. May not be
  <code>null</code>.
  @param eVersion
  The CSS version to use. May not be <code>null</code>.
  @return <code>null</code> if reading failed, the CSS declarations
  otherwise.
  @since 3.7.3