Fixed a z-index issue on mobile

diff --git a/wcfsetup/install/files/style/imageViewer.less b/wcfsetup/install/files/style/imageViewer.less
index 537b45c2992614f8291ad8a9ab7049c5513b55e0..3457972f35407dacc13916512c8c1bc49cb0357f 100644 (file)
--- a/wcfsetup/install/files/style/imageViewer.less
+++ b/wcfsetup/install/files/style/imageViewer.less
@@ -191,6 +191,7 @@
                                        opacity: 0;
                                        position: absolute;
                                        top: 50%;
+                                       z-index: 30;
                                        
                                        .transition(opacity, .3s);