Update normalize.js

Author: asamuzaK

lib/normalize.js

@@ -388,7 +388,7 @@ const prepareBorderProperties = (property, value, priority, properties, opt = {}
   const nameProperty = prop1;
   // Empty string, global keywords, var(), value of longhands.
   if (typeof value === "string") {
-    // longhand properties
+    // Handle longhand properties
     if (prop3) {
       const nameItem = getPropertyItem(nameProperty, properties);
       const imageItem = getPropertyItem(BORDER_IMAGE, properties);
@@ -437,7 +437,7 @@ const prepareBorderProperties = (property, value, priority, properties, opt = {}
       borderItems.set(lineProperty, lineItem);
       borderItems.set(positionProperty, positionItem);
       borderItems.set(longhandProperty, longhandItem);
-      // border-top, border-right, border-bottom, border-left shorthands
+      // Handle border-top, border-right, border-bottom, border-left shorthands
     } else if (prop2 && positions.includes(prop2)) {
       const nameItem = getPropertyItem(nameProperty, properties);
       const imageItem = getPropertyItem(BORDER_IMAGE, properties);
@@ -509,7 +509,7 @@ const prepareBorderProperties = (property, value, priority, properties, opt = {}
       borderItems.set(lineStyleProperty, lineStyleItem);
       borderItems.set(lineColorProperty, lineColorItem);
       borderItems.set(positionProperty, positionItem);
-      // border-width, border-style, border-color
+      // Handle border-width, border-style, border-color shorthands
     } else if (prop2 && lines.includes(prop2)) {
       const nameItem = getPropertyItem(nameProperty, properties);
       const imageItem = getPropertyItem(BORDER_IMAGE, properties);
@@ -547,7 +547,7 @@ const prepareBorderProperties = (property, value, priority, properties, opt = {}
       borderItems.set(nameProperty, nameItem);
       borderItems.set(BORDER_IMAGE, imageItem);
       borderItems.set(lineProperty, lineItem);
-      // border shorthand
+      // Handle border shorthand
     } else {
       const nameItem = getPropertyItem(nameProperty, properties);
       const imageItem = getPropertyItem(BORDER_IMAGE, properties);
@@ -660,7 +660,7 @@ const prepareBorderProperties = (property, value, priority, properties, opt = {}
     borderItems.set(lineProperty, lineItem);
     // Values of border, border-top, border-right, border-bottom, border-top.
   } else if (value && typeof value === "object") {
-    // position shorthands
+    // Handle position shorthands
     if (prop2) {
       if (!positions.includes(prop2)) {
         return;
@@ -755,7 +755,7 @@ const prepareBorderProperties = (property, value, priority, properties, opt = {}
       borderItems.set(lineStyleProperty, lineStyleItem);
       borderItems.set(lineColorProperty, lineColorItem);
       borderItems.set(positionProperty, positionItem);
-      // border shorthand
+      // Handle border shorthand
     } else {
       const nameItem = getPropertyItem(prop1, properties);
       const imageItem = getPropertyItem(BORDER_IMAGE, properties);