# Gemfile
gem "extract_content_images", git: "https://gist.github.com/61b3d029a4f4b74f6244.git", require: "extract_content_images"
require "extract_content_images"
url = 'http://blog.kksg.net/posts/%E5%B0%8F%E7%AC%A0%E5%8E%9F%E8%AB%B8%E5%B3%B6'
html = open(url).read