We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

Why a img tag with negative width value don't render itself on ff?

  • 1 baphendule
  • 2 zinale nkinga
  • 2 views
  • Igcine ukuphendulwa ngu Shadow110

more options

the HTML spec say so that the width and height attributes must be positive integers, but have no mention on what browser should do if it's a negative value. Other browsers ignore the attribute with a invalid attribute and render the tag with the width default value. ``````

the HTML spec say so that the width and height attributes must be positive integers, but have no mention on what browser should do if it's a negative value. Other browsers ignore the attribute with a invalid attribute and render the tag with the width default value. ```<img src="img.png" width="-1">```

Isisombululo esikhethiwe

W3C (World Wide Web Consortium in charge of rules and practises web browsers and web pages is what Mozilla follows. Firefox is playing rather strict these days. May find it breaks in a update for another browser sooner or later.

If it does not pass https://validator.w3.org/ for HTML or https://jigsaw.w3.org/css-validator/ for CSS then you are doing it wrong.

Making exceptions to rules is not abiding by the rules.

You'll have to hit up some coding places/forums for help. I do some but not enough to help you.

Note : Firefox 57 Quantum release date Nov 14th https://www.mozilla.org/en-US/firefox/quantum/ Note : Legacy Extensions will be disabled and or removed.

Please let us know if this solved your issue or if need further assistance.

Funda le mpendulo ngokuhambisana nalesi sihloko 👍 1

All Replies (1)

more options

Isisombululo Esikhethiwe

W3C (World Wide Web Consortium in charge of rules and practises web browsers and web pages is what Mozilla follows. Firefox is playing rather strict these days. May find it breaks in a update for another browser sooner or later.

If it does not pass https://validator.w3.org/ for HTML or https://jigsaw.w3.org/css-validator/ for CSS then you are doing it wrong.

Making exceptions to rules is not abiding by the rules.

You'll have to hit up some coding places/forums for help. I do some but not enough to help you.

Note : Firefox 57 Quantum release date Nov 14th https://www.mozilla.org/en-US/firefox/quantum/ Note : Legacy Extensions will be disabled and or removed.

Please let us know if this solved your issue or if need further assistance.