# White line between topNav and first item on a page

**URL:** <https://community.glideapps.com/t/white-line-between-topnav-and-first-item-on-a-page/9869>\
**Category:** Report a Bug\
**Created:** [May 27, 2020, 1:02pm UTC](https://community.glideapps.com/t/white-line-between-topnav-and-first-item-on-a-page/9869 "2020-05-27T13:02:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Adriano\_Rocha\_Campos](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/adriano_rocha_campos/32/8059_2.png) [@Adriano\_Rocha\_Campos](https://community.glideapps.com/u/Adriano_Rocha_Campos)\
**Post date:** [May 27, 2020, 1:02pm UTC](https://community.glideapps.com/t/white-line-between-topnav-and-first-item-on-a-page/9869/1 "2020-05-27T13:02:06Z")

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Hi,

I’m getting a white line between topNav and first item on my homepage…  
When I open the URL on my PC it doesn’t show, but on the editor and on my mobile the white line appears.  
I’ve already checked if the problem was on the image, but it’s not.

Does anyone have an idea on how to solve it?

My app’s URL: [https://bucal.glideapp.io/](https://bucal.glideapp.io/)  
 ![app_nav_top](https://us1.discourse-cdn.com/flex002/uploads/glideapps/original/2X/d/db54e80e6afee4d4d7796d541d853312d46729a3.jpeg)

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**Author:** ![Jeff\_Hager](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/jeff_hager/32/43_2.png) [@Jeff\_Hager](https://community.glideapps.com/u/Jeff_Hager)\
**Post date:** [May 27, 2020, 1:16pm UTC](https://community.glideapps.com/t/white-line-between-topnav-and-first-item-on-a-page/9869/2 "2020-05-27T13:16:25Z")

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The emulator in the builder needs to compress the display a little bit to get things to show. This causes weird side affects like horizon lines but being visible. This is only in the emulator and doesn’t affect the final app.

> [@Separator not showing](https://community.glideapps.com/t/separator-not-showing/4146/6):
>
> Hi guys. It’s due to the separator.being very thin and the preview needing to be scaled down on some screens. Due to different scaling algorithms used in different browsers sometimes this results in the separator becoming invisible. As mentioned this is only a problem with scaled previews.

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**Author:** ![Adriano\_Rocha\_Campos](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/adriano_rocha_campos/32/8059_2.png) [@Adriano\_Rocha\_Campos](https://community.glideapps.com/u/Adriano_Rocha_Campos)\
**Post date:** [May 28, 2020, 5:35pm UTC](https://community.glideapps.com/t/white-line-between-topnav-and-first-item-on-a-page/9869/3 "2020-05-28T17:35:56Z")

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Hi, Jeff.  
It was happening on my phone too (iPhone 11 ProMax), in Chrome, Safari and after saving it to home screen, but it’s ok now!

Thank you so much for your attention and fast reply!!