How to reset default button style in Firefox 4 +

Question

In firefox 3.6 you could use ::-moz-focus-inner {border:0;padding:0;margin:0;} to remove those default margins and paddings forms.css added.

How can I reset this in Firefox 4? I've been searching for any .css files inside the install directory that could add styles to my button but can't find any for ff4 - the button still gets that annoying 1px top padding that won't allow the text to align to vertical middle.

http://easwee.net/other/FF_problem.gif

EDIT: I use a reset stylesheet so no need to reset styles. It's a browser stylesheet that's messing here.

Solution 1

I actually found the solution myself.

In your url field type: resource://gre-resources/forms.css - this will open forms.css for FF4 - and search for the following selector

button::-moz-focus-inner,
input[type="reset"]::-moz-focus-inner,
input[type="button"]::-moz-focus-inner,
input[type="submit"]::-moz-focus-inner,
input[type="file"] > input[type="button"]::-moz-focus-inner

Now just put that in your main stylesheet like:

button::-moz-focus-inner,
input[type="reset"]::-moz-focus-inner,
input[type="button"]::-moz-focus-inner,
input[type="submit"]::-moz-focus-inner,
input[type="file"] > input[type="button"]::-moz-focus-inner {border:0;padding:0;margin:0;}

It shouldn't be overriding your css anymore. Also note that if you haven't defined any font style for your inputs FF won't inherit body font styling.

Solution 2

try setting it's values to undefined (border:undefined etc). not sure here, but it worked for me when I had a similiar problem.

Solution 3

Twitter Bootstrap does it like this in its reset.less (which is a more barebones version of normalize.css):

button::-moz-focus-inner,
input::-moz-focus-inner { // Inner padding and border oddities in FF3/4
  padding: 0;
  border: 0;
}

As an aside, Bootstrap's reset.less is probably a more reliable and perennial solution to achieve form cross-browser-ness than maintaining your own rules. It's much more complete than Meyer's reset.css, but more minimalist than normalize.css.

Comments

[easwee]

No it won't. I'm using a reset stylesheet. Read the question again to get what I'm reffering to.

[caleb marincel]

yes but even if you find that css file in firefox the change will still only apply to you and nobody else

[easwee]

It will apply to everyone once I find which selector is adding that and I override it with a more specified selector in my main stylesheet. It always worked in all FF versions till now.

[caleb marincel]

oh yes I see. Well looks like you found it :)

[easwee]

Yeah - maybe my question was bit unclear - edited few words for future if anyone searches for this.

[Admin]

Thank you. Sadly, finding those css resource files is no longer applicable in Firefox 6; however, this resolved my issue still.

[easwee]

@PatrickRobertSheaO'Connor In ff6 it got changed to resource://gre-resources/html.css

[Gabriele Petrioli]

+1 so many thanks... it was too frustrating trying to figure out the persistent border..

[Damir Zekić]

Thanks, was burned by this myself. A minor note though: margin:0 seems unnecessary as Firefox doesn't define it itself.

[easwee]

@Damir Zekić Maybe in latest versions - in older it is needed.

[julien_c]

A year later, I would suggest to have a look at Bootstrap's reset.less which goes a long way towards harmonizing browser quirks for forms. Also see my answer below.

[Sam Hobbs]

In the Developer Tools in the Inspector in the Computed tab it shows the style being affected and has a link for opening the forms.css file. I found this question by searching for "resource://gre-resources/forms.css".