diff --git a/src/wp-includes/style-engine/class-wp-style-engine-css-declarations.php b/src/wp-includes/style-engine/class-wp-style-engine-css-declarations.php
index 69eb3a515720f..ef9401955d052 100644
--- a/src/wp-includes/style-engine/class-wp-style-engine-css-declarations.php
+++ b/src/wp-includes/style-engine/class-wp-style-engine-css-declarations.php
@@ -36,7 +36,7 @@ class WP_Style_Engine_CSS_Declarations {
 	 *
 	 * @since 6.1.0
 	 *
-	 * @param array $declarations An array of declarations (property => value pairs).
+	 * @param string[] $declarations An associative array of CSS definitions, e.g., array( "$property" => "$value", "$property" => "$value" ).
 	 */
 	public function __construct( $declarations = array() ) {
 		$this->add_declarations( $declarations );
@@ -73,7 +73,7 @@ public function add_declaration( $property, $value ) {
 	}
 
 	/**
-	 * Remove a single declaration.
+	 * Removes a single declaration.
 	 *
 	 * @since 6.1.0
 	 *
@@ -103,7 +103,7 @@ public function add_declarations( $declarations ) {
 	}
 
 	/**
-	 * Remove multiple declarations.
+	 * Removes multiple declarations.
 	 *
 	 * @since 6.1.0
 	 *
@@ -119,7 +119,7 @@ public function remove_declarations( $properties = array() ) {
 	}
 
 	/**
-	 * Get the declarations array.
+	 * Gets the declarations array.
 	 *
 	 * @since 6.1.0
 	 *
diff --git a/src/wp-includes/style-engine/class-wp-style-engine-css-rule.php b/src/wp-includes/style-engine/class-wp-style-engine-css-rule.php
index 76a0a68e6248c..7036790e910db 100644
--- a/src/wp-includes/style-engine/class-wp-style-engine-css-rule.php
+++ b/src/wp-includes/style-engine/class-wp-style-engine-css-rule.php
@@ -42,9 +42,9 @@ class WP_Style_Engine_CSS_Rule {
 	 *
 	 * @since 6.1.0
 	 *
-	 * @param string                                 $selector     The CSS selector.
-	 * @param array|WP_Style_Engine_CSS_Declarations $declarations An array of declarations (property => value pairs),
-	 *                                                             or a WP_Style_Engine_CSS_Declarations object.
+	 * @param string                                    $selector     The CSS selector.
+	 * @param string[]|WP_Style_Engine_CSS_Declarations $declarations An associative array of CSS definitions, e.g., array( "$property" => "$value", "$property" => "$value" ),
+	 *                                                                or a WP_Style_Engine_CSS_Declarations object.
 	 */
 	public function __construct( $selector = '', $declarations = array() ) {
 		$this->set_selector( $selector );
@@ -52,7 +52,7 @@ public function __construct( $selector = '', $declarations = array() ) {
 	}
 
 	/**
-	 * Set the selector.
+	 * Sets the selector.
 	 *
 	 * @since 6.1.0
 	 *