third_party/WebKit/LayoutTests/transforms/independent-transform-initial-value.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <div style="position:relative; width:100px; height:100px; background:green;"></div>
 <div style="translate:initial; margin-top:-100px; width:100px; height:100px; background:red;"></div>

 <div style="position:relative; width:100px; height:100px; background:green;"></div>
 <div style="scale:initial; margin-top:-100px; width:100px; height:100px; background:red;"></div>

 <div style="position:relative; width:100px; height:100px; background:green;"></div>
 <div style="rotate:initial; margin-top:-100px; width:100px; height:100px; background:red;"></div>
 This test verifies resetting CSS translate to initial value doesn't result in a stacking context.
	<!DOCTYPE html>
	<div style="position:relative; width:100px; height:100px; background:green;"></div>
	<div style="translate:initial; margin-top:-100px; width:100px; height:100px; background:red;"></div>

	<div style="position:relative; width:100px; height:100px; background:green;"></div>
	<div style="scale:initial; margin-top:-100px; width:100px; height:100px; background:red;"></div>

	<div style="position:relative; width:100px; height:100px; background:green;"></div>
	<div style="rotate:initial; margin-top:-100px; width:100px; height:100px; background:red;"></div>
	This test verifies resetting CSS translate to initial value doesn't result in a stacking context.