Rendering issue: icon-spin fa-spin shake/wobble (chrome firefox)

[Katuva]

✋ please read #671 (comment) 👈

When using data-loading-text, for example:

data-loading-text=" Logging in..."

And then when the button is clicked and the "loading" property is set, the icon will wobble and shake as it spins.

Although, if you include the spinning icon on the button as normal, for example:

Log in

It spins fine.

I've only encountered this bug on Firefox (currently version 18), works perfectly on Chrome.

edit by tagliala
Firefox related issue: #3451

[davegandy]

Freaking Firefox. Been as much of a pain in this project as IE. Are you using 3.0.1? There's new Mozilla specific spin classes to help this issue. If it's still happening, let me know and I'll re-open.

[Katuva]

I can confirm I'm using 3.0.1, I even re-downloaded and double checked and the issue persists.

In my previous comment, it seems like my examples were stripped out, I'd be happy to send you the mako template where this issue happens?

[conrado]

I have a shake/wobble when using .icon-spin on Chromium (24.0.1312.56) and Chrome on Linux, Firefox (18.0.2) seems fine. Tested on 13d5dd3

[zoopcommerce]

I'm getting a shake/wobble on firefox 18.0.2 but not in Chrome or IE in certain circumstances. I haven't been able to pinpoint the exact cause however. (using font-awesome v3.0.2)

[bbruneau]

I'm getting wobble on all browsers under Windows 7, but it's a thing of beauty under OSX.

[conrado]

@davegandy ping

[jeanbza]

I'm getting a wobble on Chrome Version 26.0.1410.65 (fairly recent version). Any work on this?

[aisthesis]

ping! I'm also having the issue. Don't see why the issue was closed, as it still persists.

[tagliala]

can you please provide a fiddle explaining the issue?

[cqcn1991]

Same problem here, any solutions?

[BreadMaker]

Confirmed for latest version of Chrome (28.0.1500.71). The smaller the icon, more exaggerated is the movement. This issue affect the icon-spin class anywhere is invoked.

[tagliala]

I tried 3d rotation without any success. Rotating the icon-circle itself is an issue.

[aisthesis]

Under Windows 7, I'm having the issue in Firefox 22.0, Chrome 28.0.1500.72. IE 8-10 the wobble is barely visible, but looking closely at the case where I've been observing the issue, I think there's still a slight wobble. I'll do my best to set up a fiddle for the issue, but there's enough context that it may take some time.

[aisthesis]

Not my jsfiddle, but here's one with the issue: http://jsfiddle.net/Rnt9N/2/
Looks great on Mac but jittery on Firefox under Windows 7.

[tagliala]

it's not so bad for me (firefox 22 / w7 x64).

[hamxiaoz]

I have same issue using node-webkit v0.7.5.
Ended up using spin.js

[tagliala]

reopening this one since it's also FontAwesome's fault

[paldepind]

Doing .fa-spin { -webkit-filter: blur(0); } like this tweet suggests fixed it for me.

[tagliala]

@paldepind thanks for sharing this solution

Can you please provide a fiddle showing the current spin and the proposed spin side by side?

You can fork this fiddle: http://jsfiddle.net/tagliala/HgYqA/

I'm not seeing differences in the wobble with Chrome on Windows 7. I'm just noticing the icon spinning "slower", like at the half fps rate

[paldepind]

@tagliala you're welcome!

Here's a fiddle showing two spinners, one with and one without the fix: http://jsfiddle.net/paldepind/XLdQX/

I've tested with Chrome 30 and Firefox 24 on Linux. In Firefox everything is smooth but in Chrome the spinner without the fix is slightly wobbly. I'm not seeing any difference in rotation speed in any of the browsers though.

[tagliala]

Chrome 32 on Windows 7 doesn't display the icon at all...

[BreadMaker]

In GNU/Linux, with Chromium 30 the fix is working. Not the same for Firefox 26, because the filter property is not yet supported. https://developer.mozilla.org/en-US/docs/Web/CSS/filter

[aisthesis]

For Firefox 26 on Windows 8, both are still wobbly for me. In Chrome 31 on Windows 8, both look fine.
On Dec 12, 2013, at 2:20 PM, Felipe Peñailillo notifications@github.com wrote:

In GNU/Linux, with Chromium 30 the fix is working. Not the same for Firefox 26, because the filter property is not yet supported. https://developer.mozilla.org/en-US/docs/Web/CSS/filter

—
Reply to this email directly or view it on GitHub.

[tagliala]

Unfortunately it doesn't show on windows and sucks on OSX :(

http://jsfiddle.net/tagliala/XLdQX/2/

The spinning icon is not antialiased and keeps wobbling

I hoped this was a viable workaround but it isn't

[paldepind]

@tagliala That's unfortunate. I had only tried the fix on my machine with Linux with great results.

[tagliala]

@paldepind oh I know I remember that on my ubuntu machine the spinning stuff really sucks

Can you please give a try to subpixel transformations: http://jsfiddle.net/tagliala/96ULe/3/

[paldepind]

Hi! I updated to Chrome 31 today and now the wobbling has disappeared. So maybe this problem will go away all by itself.

@tagliala not sure what I'm supposed to see. It all looks like it should I think. But again this is in Chrome 31 where I'm not seeing the wobble problem anymore.

[tagliala]

working well with the SVG framework

If webfonts are still affected and FA5 free will be affected too, I should label this as wontfix and advise to consider a svg solution for spinning icons

[robmadole]

@tagliala agreed. I'm afraid that web fonts will always be plagued with issues around this so SVG is the best solution if this is an issue. We'll have FA5 Free out just as soon as we can.

[My1]

well SVG framework isnt bad but has one annoying thing: Javascript.

there are many reasons why ppl use things like noscript to protect themselves from stuff js might do and when stuff doesnt work with JS it's ugly imo.

I mean we have things like @font-face and CSS animations and whatnot so that JS is no longer needed for tasks like these and that's a good thing.

[tagliala]

Sorry, 😢

Fonts have a descender by design, so a perfect spin cannot be guaranteed with the webfont implementation. Labeled as "can't fix"

TL;DR
Can't be fixed because of descender. Please make sure that you are using a font size multiple of 16px (14px for FA4) for your spinner. It helps.
If you are not satisfied and you need a pixel perfect spinner, please consider to use an animated SVG spinner or switch to the SVG implementation

[PeterShaggyNoble]

@My1, you don't need JS to animate SVG, you can use CSS.

[robmadole]

good call @tagliala ..."can't fix" is more accurate. I've tried multiple times :D

[My1]

well but the SVG framework will only load in a JS-enabled browser.

I tried already.

if you have FA Pro, get the demo server, disable js (easy to do in chrome) and access

http://localhost:3344/docs/svg-framework.html

you will see that no icon will load.

you can probably do the svgs alone, but my response was precisely towards the ones who said SVG Framework.

also who has this issue? I tried @tagliala 's link in Firefox chrome and opera and didnt notice much wobble (and I certainly should be able to notice anything weird in the pixels when I go like 5cm close to my 42 inch FHD Screen where you can easily see the pixels)

also foa FA5 would it become 16px then coz the base size changes?

[FreezePhoenix]

how is this a huge problem

[andreobriennz]

Using a negative text-indent value fixed the problem for me

[domenkozar]

Seems like filter: blur(0) does the job and it's very well supported https://caniuse.com/#feat=css-filters

[camslice]

A combination of @andreobriennz's solution and setting line-height for each size gets pretty good results for me. Still a very slight sub-pixel wobble but basically unnoticeable.

.fa-spin {
  text-indent: -0.000001em;
  line-height: 0.6em;
}
.fa-spin.fa-lg {
  line-height: 0.7em;
}
.fa-spin.fa-2x {
  line-height: 0.8em;
}
.fa-spin.fa-3x,
.fa-spin.fa-4x,
.fa-spin.fa-5x {
  line-height: 1em;
}

[noobnoobdc137]

try
display: flex;
to <i> tag

Worked for me

[camslice]

@noobnoobdc137 seems to modify the rotation axis and causing the icon to spin over a very wide circle instead of on the spot. Curious about what other CSS you may have applied?

I'm using Font Awesome v4.7.0

[Alkoptantech]

Not many problems can be fixed but it looks good at first
https://www.alkoptantech.com

[Sniper-E]

Fa-spin had a very slight wobble to it on my site. But fa-pulse had a big wobble to it.

I added a .icon.fa-pulse{padding:2px 0 0 2px} and the wobble was almost completely gone. Now I need to work on fa-spin and slow that slight wobble down.

Try using .icon.fa-spin { padding: (try different numbers) } It will smooth out.

[tagliala]

I added a .icon.fa-pulse{padding:2px 0 0 2px} and the wobble was almost completely gone. Now I need to work on fa-spin and slow that slight wobble down.

It also depends on the browser, so you may experience wobbling on a different browser with the same padding. Please consider an svg based icon if you need a pixel perfect spinner

[phthatcher-conocophillips]

2023 - still an issue. I'm using angular and the '@fortawesome/angular-fontawesome' library, instead of using the fa-spin class, I made a copy of it and added it to my stylesheet, then changed the steps to 1 instead of 8 which fixed the wobble regardless of padding/margin/font-size

I also have transform-origin:center in there somewhere but I don't think its having any effect, it was an earlier attempt to fix the wobble

`<style>

.fa-pulse, .fa-spin-pulse {
-webkit-animation-name: fa-spin;
animation-name: fa-spin;
-webkit-animation-direction: var(--fa-animation-direction, normal);
animation-direction: var(--fa-animation-direction, normal);
-webkit-animation-duration: var(--fa-animation-duration, 1s);
animation-duration: var(--fa-animation-duration, 1s);
-webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);
animation-iteration-count: var(--fa-animation-iteration-count, infinite);
-webkit-animation-timing-function: var(--fa-animation-timing, steps(1));
animation-timing-function: var(--fa-animation-timing, steps(1));
}

</style>`

[tagliala]

2023 - still an issue

Not an issue, we can't fix this issue, it is by design for webfont implementation

but the animation-timing steps are set to 1 instead of 8, for me this fixed the wobble regardless if any padding/margin/font-size is set.

This is a fix for some use cases. I would like to specify that fonts have a descender by design, so a perfect spin cannot be guaranteed with the webfont implementation

It is ok to use a workaround specific for a browser or a use case, but please switch to svg if you need perfect spinners