Method markLocal

lib/css/CssParser.js:1099–1101

* Record that the current comma-separated selector carries a local class / id (no-op when pure-mode is off).

()

			 * Record that the current comma-separated selector carries a local class / id (no-op when pure-mode is off).
			 */
			markLocal() {
				if (this.enabled) this.segmentLocal = true;
			},
			/**
			 * Close the current comma-separated selector segment (or whole prelude at `{`): if it had no local and no ancestor compensates, the rule is impure (no-op when pure-mode is off).
			 */