fix(lib): read correct styles during SSR and add test for layout-wrap

src/lib/api/flexbox/layout.spec.ts

@@ -167,6 +167,13 @@ describe('layout directive', () => {
        });
     });
 
+    it('should have valid wrap with flex children', () => {
+      createTestComponent(`<div fxLayout='row wrap'><div fxFlex></div></div>`);
+      expectNativeEl(fixture).toHaveStyle({
+        'flex-wrap': 'wrap'
+      });
+    });
+
   });
 
   describe('with inline options', () => {

src/lib/utils/style-utils.ts

@@ -72,7 +72,7 @@ export function lookupAttributeValue(element: HTMLElement, attribute: string): s
  * Find the DOM element's inline style value (if any)
  */
 export function lookupInlineStyle(element: HTMLElement, styleName: string): string {
-  return element.style[styleName];
+  return element.style[styleName] || element.style.getPropertyValue(styleName);
 }
 
 /**