HTML layer

Table of Contents

• Description
  • Features:
• Install
  • LSP
  • web-beautify
  • prettier
  • Choosing a formatter
  • Activate leex support
• Backends
  • Language Server Protocol
• Live display in browser
• Key bindings
  • Web mode
  • CSS/SCSS

Description

This layer adds support for editing HTML and CSS.

Features:

• Editing HTML and CSS file using web-mode
• Support for Sass/Scss and Less files
• Generate HTML and CSS coding using emmet-mode
• Tags navigation on key % using evil-matchit
• Support for editing Slim and Pug templates using slim-mode and pug-mode
• See the effects of typed HTML using impatient-mode
• imenu support for CSS and Sass through counsel-css
• Formatting with web-beautify

Install

To use this configuration layer, add it to your ~/.spacemacs. You will need to add html to the existing dotspacemacs-configuration-layers list in this file.

SCSS linting requires SCSS-Lint version >= 0.43.0. You can get it from GitHub:

gem install scss_lint_reporter_checkstyle
gem install scss_lint

LSP

To enable LSP, set the layer variables below to t:

• css-enable-lsp
• less-enable-lsp
• scss-enable-lsp
• html-enable-lsp

web-beautify

See web-beautify layer documentation.

prettier

See prettier layer documentation.

Choosing a formatter

To choose a formatter, set the layer variable web-fmt-tool:

(html :variables web-fmt-tool 'web-beautify)

Formatter can be chosen on a per project basis using directory local variables (files named .dir-locals.el at the root of a project), an example to use the prettier formatter:

;;; Directory Local Variables
;;; For more information see (info "(emacs) Directory Variables")

((html-mode (web-fmt-tool . prettier)))

Note: you can easily add a directory local variable with SPC f v d.

Activate leex support

To activate support for .leex files set below config variable to a non-nil value.

(html :variables html-enable-leex-support t)

Backends

Language Server Protocol

For css files, you have to install vscode-css-languageserver-bin

npm i -g vscode-css-languageserver-bin

For html files, you will need to install vscode-html-languageserver-bin

npm install -g vscode-html-languageserver-bin

Don’t forget to set the corresponding layer variables mentioned above to t

Live display in browser

Use SPC m I to enable impatient mode, opening a live view of a HTML file in your browser. You may wish to enable impatient mode in referenced CSS or JS files, too.

When the underlying file is an HTML file, SPC m I automatically opens the page in the browser. For other buffers, a list of available views can be found on http://localhost:8080/imp.

For more information visit the help page on GitHub.

Key bindings

Web mode

Key binding	Description
SPC m g p	quickly navigate CSS rules using helm
SPC m e h	highlight DOM errors
SPC m I	open live view in browser
SPC m g b	go to the beginning of current element
SPC m g c	go to the first child element
SPC m g p	go to the parent element
SPC m g s	go to next sibling
SPC m h p	show xpath of the current element
SPC m r c	clone the current element
SPC m r d	delete the current element (does not delete the children)
SPC m r r	rename current element
SPC m r w	wrap current element
SPC m z	fold/unfold current element
%	evil-matchit key binding to jump to closing tag
C-return	emmet-expand snippet

A transient-state is also defined, start it with SPC m . or , .

Key binding	Description
?	Toggle full help
c	clone current element
d	delete (vanish) current element (does not delete the children)
D	delete current element and children
j	next element
J / gj	next sibling element
h	parent element
k	previous element
K / gk	previous sibling element
l	first child element
p	show xpath of current element
q	leave the transient-state
r	rename current element
w	wrap current element

CSS/SCSS

Key binding	Description
SPC m g h	quickly navigate CSS rules
SPC m z c	fold css statement to one line
SPC m z o	unfold css statement to one line