feat(CSS): import CSS resource, unit test and document. #572

	# This is a ci workflow to help you get started with Actions

	name: CI

	# Controls when the action will run.
	on:
	# Triggers the workflow on pull request events but only for the master branch
	pull_request:
	branches: [ master ]
	paths:
	- 'flexibleengine/**'

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	build:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- name: Set up Go
	uses: actions/setup-go@v3
	with:
	go-version: ">=1.18"

	- name: Build
	run: make build

	- name: Vet
	run: make vet

	- name: Test
	run: make test

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