0
Nov 27, 2014
— https://sf.gl/1282
Strikethroughs in the Safari Web Inspector styles? Here’s why
Safari uses a strikethrough in showing invalid properties in style sheets. This is not documented, and there's no tooltips to explain this multicolored line.
There are 2 known different strikethroughs, red and black.
Styles getting overridden by other styles are striked out in black:
But when it's an invalid or supported property, or the value can't be parsed, the strikethrough in the style sidebar is red:
