Since my uncategorized topics page is still accessible by URL by ordinary users (it’s now a totally blank page), if I could just remove the Uncategorized link from the hamburger menu I wouldn’t have random users clicking there and getting that blank page. So far the CSS solutions I’ve found have not worked. I’d be fine with removing ALL the category links from the hamburger menu, actually. Obviously, I’ve checked this both from a staff and ordinary user account, and have unchecked the “permit uncategorized posts” setting. Thanks!
To remove only the uncategorized category
.hamburger-panel .category-links .category-uncategorized { display: none; }
To remove all
.hamburger-panel .category-links { display: none; }
.hamburger-panel .panel-body-contents > hr { display: none; }
Works like a charm. Thanks! Will the FAQ (New) eventually timeout on its own?
No, it will not timeout. It will disappear only when the FAQ has been read (scroll all the way down).
Is there a way to start with the above solution to hide all, then specifically display only select categories?
我在哪里可以编辑这段代码？我不是技术型 Discourse 用户！
查看 Beginner's guide to using Discourse Themes 了解所有详情。
这并没有帮到我 
我进入了 CSS 菜单，却找不到要编辑的那行代码。也许我需要把它添加到某个地方？
没错，该行 CSS 代码目前并不存在。您需要将其添加到当前主题，或添加到已包含在活动主题中的主题组件中。