Google HTML/CSS Style GuideRevision 2.1 This style guide contains many details that are initially hidden from view. They are marked by the triangle icon, which you see here on your left. Click it now. You should see “Hooray” appear below. Hooray! Now you know you can expand points to get more details. Alternatively, there’s a “toggle all” at the top of this document. This document defines formatting and style rules for HTML
HTMLクイックリファレンス
