 the
           * code snippet. To specify CSS as the language to use, simply
           * set `language` to `css`. This automatically prepends the 'language'
           * portion of the 'language-xxxx' class Prism uses.
           *
           * @attribute language
           * @type string
           * @default *
           */
          language: {
            type: String,
            value: '*'
          },
          /**
           * The `linenumbers` attribute toggles displaying line numbers at
       