When loading a page I work on, I see something like this:
14:54:44.103 Error in parsing value for ‘margin’. Declaration dropped. instantiate_obj.php
(With a yellow-ish triangle with an exclamationmark in front of it)
The warning is clear: somewhere in the html/css a faulty margin-value is used.
But how to find out where, or what causes it?
Is it something inline, an external CSS, something dynamically added by javascript?
What I tried:
- Clicking on the link on "instantiate_obj.php" just opens a tab in "view-source:" mode.
Not very useful. I don't see any problems on quick inspection, but the page is pretty big. I want something easier than checking everything in the source and the linked CSS.
- Looking at the timestamp (14:54:44.103) I see it ends in 103. Maybe a linenumber?
Nope, that particular line contains only <br>.
- Searching https://developer.mozilla.org didn't shed any light on how to approach this problem.
I can only find out references on how to do it when you see the yellow-ish triangle in inspector, in the second pane (css with that 'filter styles' on top)
Does anybody know how to find out what caused the warning?