<style> block linted by Eslint

.eslintrc.js

module.exports = {
  parser: "vue-eslint-parser",
  extends: ["airbnb-base", "plugin:vue/recommended"]
};

output.log

> eslint-plugin-vue-test@1.0.0 lint ./eslint-plugin-vue-test
> eslint --ext .js,.vue src

./eslint-plugin-vue-test/src/Title.vue
  7:1  error  Line 7 exceeds the maximum line length of 100  max-len

✖ 1 problem (1 error, 0 warnings)

> eslint --ext .js,.vue src "--version"

v4.4.1

package.json

{
  "name": "eslint-plugin-vue-test",
  "version": "1.0.0",
  "private": true,
  "scripts": {
    "lint": "eslint --ext .js,.vue src"
  },
  "devDependencies": {
    "eslint": "^4.4.1",
    "eslint-config-airbnb-base": "^11.3.1",
    "eslint-plugin-import": "^2.7.0",
    "eslint-plugin-vue": "beta"
  }
}

Title.vue

<template>
  <h1>Test</h1>
</template>

<style>
  h1 {
    box-shadow: 0 -3em 0 0.2em, 2em -2em 0 0em, 3em 0 0 -1em, 2em 2em 0 -1em, 0 3em 0 -1em, -2em 2em 0 -1em, -3em 0 0 -1em, -2em -2em 0 0;
  }
</style>