Repository: vscode
Issue: Toggle line comment doesn't work for multiple lines in CSS
Labels: bug,editor-comments


Type: <b>Bug</b>

Toggle line comment in CSS creates a single comment block when multiple lines are selected. This creates an issue, aka corrupts the code, if the selected lines already contain comment(s).

Highlight 2 lines:
```css
  /* flex-grow: 1; */
  /* justify-self: center; */
```
Press CTRL + /

The result is currupted CSS:

```css
  flex-grow: 1; */
  /* justify-self: center; 
```

A possible fix is to process each line individually like it does in javascript.

VS Code version: Code 1.79.0 (b380da4ef1ee00e224a15c1d4d9793e27c2b6302, 2023-06-07T14:26:35.552Z)
OS version: Windows_NT x64 10.0.19045
Modes:

<details>
<summary>System Info</summary>

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz (16 x 3600)|
|GPU Status|2d_canvas: enabled<br>canvas_oop_rasterization: disabled_off<br>direct_rendering_display_compositor: disabled_off_ok<br>gpu_compositing: enabled<br>multiple_raster_threads: enabled_on<br>opengl: enabled_on<br>rasterization: enabled<br>raw_draw: disabled_off_ok<br>video_decode: enabled<br>video_encode: enabled<br>vulkan: disabled_off<br>webgl: enabled<br>webgl2: enabled<br>webgpu: enabled|
|Load (avg)|undefined|
|Memory (System)|63.67GB (22.43GB free)|
|Process Argv|--verbose|
|Screen Reader|no|
|VM|50%|
</details><details><summary>Extensions (89)</summary>

Extension|Author (truncated)|Version
---|---|---
better-comments|aar|3.0.2
vscode-userscript|adp|1.3.2
Bookmarks|ale|13.3.1
tsl-problem-matcher|amo|0.6.2
autolispext|Aut|1.6.2
spellright|ban|3.0.116
vscode-log-viewer|ber|0.12.2
vscode-intelephense-client|bme|1.9.5
git-exclude|bou|0.3.1
phpserver|bra|3.0.2
insert-unicode|bru|0.14.0
turbo-console-log|Cha|2.9.3
regex|chr|0.4.0
doxdocgen|csc|1.4.0
autoit|Dam|1.0.11
copy-directory-path|dan|1.0.3
vscode-eslint|dba|2.4.0
xml|Dot|2.5.1
gitlens|eam|13.6.0
EditorConfig|Edi|0.16.4
vscode-great-icons|emm|2.1.93
prettier-vscode|esb|9.13.0
vscode-macros|EXC|1.4.1
vscode-highlight|fab|1.7.3
vscode-firefox-debug|fir|2.9.8
auto-rename-tag|for|0.1.10
remotehub|Git|0.58.0
vscode-pull-request-github|Git|0.66.0
vscode-test-explorer|hbe|2.21.1
customize-ui|ioc|0.1.65
monkey-patch|ioc|0.1.23
reg|ion|1.1.0
better-cpp-syntax|jef|1.17.2
vscode-peacock|joh|4.2.2
minifyall|jos|2.10.0
node-module-intellisense|lei|1.5.0
Lisp|mat|0.1.12
render-crlf|med|1.6.1
vscode-language-babel|mgm|0.0.39
git-graph|mhu|1.30.0
vscode-filesize|mkx|3.1.0
vscode-apache|mrm|1.2.0
vscode-edge-devtools|ms-|2.1.1
isort|ms-|2022.8.0
python|ms-|2023.10.0
vscode-pylance|ms-|2023.6.10
remote-containers|ms-|0.292.0
remote-ssh|ms-|0.102.0
remote-ssh-edit|ms-|0.86.0
vscode-remote-extensionpack|ms-|0.24.0
azure-repos|ms-|0.34.0
cmake-tools|ms-|1.14.33
cpptools|ms-|1.15.4
cpptools-extension-pack|ms-|1.3.0
hexeditor|ms-|1.9.11
live-server|ms-|0.4.8
remote-explorer|ms-|0.4.0
remote-repositories|ms-|0.36.0
remote-server|ms-|1.2.1
test-adapter-converter|ms-|0.1.8
debugger-for-edge|msj|1.0.15
color-highlight|nau|2.5.0
mytestextension-profile-setting|nob|0.0.1
vscode-auto-scroll|pej|1.1.0
vscode-versionlens|pfl|1.5.0
parse-tree|pok|0.26.4
vscode-phpunit|rec|3.1.2
tmlanguage-syntax-highlighter|Red|2.2.1
vscode-xml|red|0.25.0
format-html-in-php|rif|1.7.0
color-manager|roy|0.7.5
rust-analyzer|rus|0.3.1541
multi-command|ryu|1.6.0
vbsvscode|Ser|1.2.1
swapdiff|sha|0.2.0
comment-divider|sta|0.4.0
code-spell-checker|str|2.20.4
tabnine-vscode|Tab|3.6.53
tauri-vscode|tau|0.2.6
cmake|twx|0.0.17
vscode-ltex|val|13.1.0
intellicode-api-usage-examples|Vis|0.2.7
vscodeintellicode|Vis|1.2.30
vscode-wakatime|Wak|24.0.11
vscode-backup|Wes|0.0.6
php-debug|xde|1.32.1
local-history|xyz|1.8.1
json-color-token|yec|1.3.2
html-css-class-completion|Zig|1.20.0

(2 theme extensions excluded)

</details>
<!-- generated by issue reporter -->