Fix rendering glitch of `Popover` arrow on low-dpi displays #199

	name: Docs

	on: [ pull_request ]

	permissions:
	contents: write

	jobs:
	build:
	name: Build Docs
	runs-on: ubuntu-20.04
	steps:
	- name: Clone repository
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: 3.x

	- name: Get cache ID
	run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV

	- name: Restore cache
	uses: actions/cache@v4
	with:
	key: mkdocs-material-${{ env.cache_id }}
	path: .cache
	restore-keys: \|
	mkdocs-material-

	- name: Install MkDocs
	run: pip install 'mkdocs-material>=9.0.0,<10.0.0'

	- name: Build MkDocs
	run: mkdocs build

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