CSS container queries don't work

[coolCucumber-cat]

Type: Bug

VSCode hasn't ever recognised them but now Intellisense is completely broken for them. Media queries do work though, even though they're exactly the same.

VS Code version: Code 1.79.2 (695af09, 2023-06-14T08:57:04.379Z)
OS version: Windows_NT x64 10.0.19045
Modes:

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz (8 x 3592)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	undefined
Memory (System)	15.95GB (8.38GB free)
Process Argv	--crash-reporter-id b67b341d-41c8-4d1e-9396-3ff475cbda2c
Screen Reader	no
VM	0%

Extensions (20)

Extension	Author (truncated)	Version
laravel-extra-intellisense	ami	0.6.3
tsl-problem-matcher	amo	0.6.2
vscode-intelephense-client	bme	1.9.5
vscode-eslint	dba	2.4.0
vscode-command-runner	edo	0.0.124
prettier-vscode	esb	9.15.0
code-runner	for	0.12.0
vscode-autohotkey-plus-plus	mar	3.3.1
python	ms-	2023.10.1
vscode-pylance	ms-	2023.6.20
powershell	ms-	2023.6.0
laravel5-snippets	one	1.17.0
synthwave-vscode	Rob	0.1.15
laravel-artisan	rya	0.0.31
language-stylus	sys	1.16.0
intellicode-api-usage-examples	Vis	0.2.7
vscodeintellicode	Vis	1.2.30
volar	Vue	1.8.1
quokka-vscode	Wal	1.0.546
php-debug	xde	1.32.1

[aeschli]

CSS container support is tracked here: #170589