130902 2014-03-28 10:18:22 -0700 Web Inspector: Screen ruler with relative units (CSS px and rem to start) 2016-12-13 15:34:23 -0800 1 1 1 Unclassified WebKit Web Inspector 528+ (Nightly build) All All NEW InRadar P4 Normal --- 1 jcraig webkit-unassigned inspector-bugzilla-changes webkit-bug-importer oldest_to_newest 995370 0 jcraig 2014-03-28 10:18:22 -0700 A physical EM ruler was requested as a joke on Twitter [1], but I believe a relative unit screen ruler would be both achievable and useful in the Web Inspector. PX and REM units would be very useful and easier to implement as a 1.0 version of the enhancement. EM and % would also be possible, but the UI may be difficult to get right; would you use the relative unit of the element under the mouse? Selected in the inspector? Both? Displaying EMs and % may be especially confusing for inexperienced CSS authors that don't understand they are multipliers of the ancestor nodes' font sizes. In any case, PX and REM seem like a good start. 1. https://twitter.com/harryharrold/status/449556995277074432 995371 1 webkit-bug-importer 2014-03-28 10:18:45 -0700 <rdar://problem/16458106>