Opening Devtools ◊ To access the DevTools, on any web page or app in GoogleChrome you can use one of these options: Open the Chrome menu at the top-right of your browser window, then select Tools > Developer Tools. Right-click on any page element and select Inspect Element. Windows / LinuxMac
https://github.com/hail2u/github-cheat-sheet/blob/master/README.ja.md
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HTML, CSS, jQueryから、Ruby, PHP, Java, Python, Git, 正規表現などウェブ制作・開発に役立つチートシートのまとめ -OverAPI
Chrome Devtools Cheatsheet
