Design Grid Lines
A designer's ruler for the browser: drop a 12, 16 or 6 column grid over the live page, switch on the vertical rhythm, and see whether the real layout lines up.
可在 Android™ 版 Firefox 上使用
扫码在 Android 版 Firefox 中打开此扩展
A designer's ruler for the browser: drop a 12, 16 or 6 column grid over the live page, switch on the vertical rhythm, and see whether the real layout lines up.