# Full Screen Chat Window Height overflow on Sublime theme **URL:** https://meta.discourse.org/t/full-screen-chat-window-height-overflow-on-sublime-theme/394864 **Category:** UX **Tags:** chat, sublime-theme **Created:** [February 1, 2026, 12:26am UTC](https://meta.discourse.org/t/full-screen-chat-window-height-overflow-on-sublime-theme/394864 "2026-02-01T00:26:37Z") **Posts on this page:** 6 **Page:** 1
### Author: ![Luna\_Mora](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/luna_mora/32/527917_2.png) [@Luna\_Mora](https://meta.discourse.org/u/Luna_Mora) #### Post date: [February 1, 2026, 12:26am UTC](https://meta.discourse.org/t/full-screen-chat-window-height-overflow-on-sublime-theme/394864/1 "2026-02-01T00:26:37Z")
I have recently installed the Sublime theme and am running into a bit of an issue with the full screen chat window appearing to overflow the screen on the height: ![image](https://global.discourse-cdn.com/meta/original/4X/f/e/d/fed24a97a507e27f5cfedc6e1caed4ebdbb44546.png) I assume this is a CSS issue, and I would like to fix this so the view height of the window doesn’t scroll when the full screen chat is open, but I’m brand new to Discourse and I can’t figure out which class or variable is causing the overflow to begin to fix it. 😅 Any help would be appreciated! (Also, I don’t know if this is connected, but it appears to do the same thing on the admin panel so it may not be the chat window overflowing but something else in the theme? The chat window does not do this on Horizon or Foundation.) ---
### Author: ![awesomerobot](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/awesomerobot/32/142900_2.png) [@awesomerobot](https://meta.discourse.org/u/awesomerobot) #### Post date: [February 4, 2026, 9:38pm UTC](https://meta.discourse.org/t/full-screen-chat-window-height-overflow-on-sublime-theme/394864/2 "2026-02-04T21:38:12Z")
Welcome! and thanks for the report, if you update the theme this will be fixed [https://github.com/discourse/discourse-sublime-theme/pull/36](https://github.com/discourse/discourse-sublime-theme/pull/36) ---
### Author: ![Luna\_Mora](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/luna_mora/32/527917_2.png) [@Luna\_Mora](https://meta.discourse.org/u/Luna_Mora) #### Post date: [February 4, 2026, 11:42pm UTC](https://meta.discourse.org/t/full-screen-chat-window-height-overflow-on-sublime-theme/394864/3 "2026-02-04T23:42:17Z")
Thank you for the quick fix! Unfortunately it didn’t completely work: ![image](https://global.discourse-cdn.com/meta/original/4X/4/c/5/4c51d1f668afd311365c258d5fc18cf390391cc7.png) Something I failed to call out the first time is that I’m using the dropdown top sidebar instead of the left aligned sidebar. I don’t know if that makes a difference. But the top of the chat is now completely cut off: ![image](https://global.discourse-cdn.com/meta/original/4X/9/1/e/91e8c2fc18b521fb84ec9427fb244d0f2de645a1.png) The update did fix the admin panel sidebar though, which I didn’t know wasn’t supposed to scroll like that! 😁 So that’s good. Also it does say that the composer heights are not defined variables: ![image](https://global.discourse-cdn.com/meta/original/4X/3/5/9/35991f5e9c9334975356ea6e2d70d45e40fc8bd9.png) ETA: I played around with it and it is definitely a bug with the header dropdown menu option 😅 ![image](https://global.discourse-cdn.com/meta/original/4X/4/9/7/4974533230bc371b89dbb5f1cb5fc71f75d8055a.jpeg) And it remains broken if you do the header dropdown menu and the separate chat nav: ![image](https://global.discourse-cdn.com/meta/original/4X/6/e/5/6e5d629689bbe8334f62027d3b3364313cd5c480.jpeg) ---
### Author: ![awesomerobot](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/awesomerobot/32/142900_2.png) [@awesomerobot](https://meta.discourse.org/u/awesomerobot) #### Post date: [February 6, 2026, 12:05am UTC](https://meta.discourse.org/t/full-screen-chat-window-height-overflow-on-sublime-theme/394864/4 "2026-02-06T00:05:08Z")
> [@Luna\_Mora](#): > > I don’t know if that makes a difference. It does! thanks for looking into it — I’ve added a fix for this case too. > [@Luna\_Mora](#): > > Also it does say that the composer heights are not defined variables: Yes this is expected, those variables only populate when the composer is open and fallback to the value after the comma when it’s not. ---
### Author: ![Luna\_Mora](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/luna_mora/32/527917_2.png) [@Luna\_Mora](https://meta.discourse.org/u/Luna_Mora) #### Post date: [February 22, 2026, 3:37am UTC](https://meta.discourse.org/t/full-screen-chat-window-height-overflow-on-sublime-theme/394864/5 "2026-02-22T03:37:00Z")
Sorry, back again with a new problem with the full screen chat window that might have been caused by the above fix. I’m honestly not sure, I didn’t access the chat settings panel before the fix was added. For both sidebar options, sidebar and header dropdown, the bottom of the Settings menu is inaccessible: Sidebar: ![image](https://global.discourse-cdn.com/meta/original/4X/f/c/0/fc0a02ab516b2b7ec3d4ce83c3254198eaeb30e2.jpeg) Header dropdown: ![image](https://global.discourse-cdn.com/meta/original/4X/9/b/8/9b8cd2b238f7a8af506f9613f6e2a3f9efcfa15f.jpeg) ---
### Author: ![system](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/system/32/443519_2.png) [@system](https://meta.discourse.org/u/system) #### Post date: [March 24, 2026, 3:37am UTC](https://meta.discourse.org/t/full-screen-chat-window-height-overflow-on-sublime-theme/394864/6 "2026-03-24T03:37:59Z")
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