fix: style

src/PhotoSlider.less

@@ -14,6 +14,10 @@
     .PhotoView-PhotoSlider__ArrowRight,
     .PhotoView-PhotoSlider__FooterWrap {
       opacity: 0;
+
+      &:hover {
+        opacity: 0;
+      }
     }
   }
 

src/PhotoSlider.tsx

@@ -329,6 +329,7 @@ export default class PhotoSlider extends React.Component<IPhotoSliderProps, Phot
             return (
               <SlideWrap
                 className={classNames({ 'PhotoView-PhotoSlider__clean': !visible }, className)}
+                role="dialog"
                 onClick={e => e.stopPropagation()}
               >
                 <div