Page Ruler is a very easy to use Google Chrome and Firefox add-on that allows you to draw out a ruler to any page and displays the width, height and position of it.
The status bar shows a widget coloured icon if the mod is available, and grey if not.
To display the ruler, you just have to click on the widget icon, or use the keyboard shortcut "Ctrl + M". Once displayed, the ruler displays information, is draggable, and resizable.
Page Ruler is cross-platform and it works on Mac OS X, Windows and Linux.
Here are some key features of "Page Ruler":
· Draw a ruler to any page and view the width, height and top, bottom, left and right position
· Drag the edges of the ruler to resize it
· Manually update the size and position of the ruler from the toolbar to make precision changes
· Ctrl+click any element on the page to measure it's size and position
· Navigate through parents, children and sibling elements of any measured element
· Google Chrome or
· Firefox 15.0 and later
What's New in This Release: [ read full changelog ]
· Fixed ruler activation when the page is contained in an iframe, and checked some special pages like 'about:' ones.