Please read my [Issues Agreement](https://github.com/desandro/issues-agreement/#readme) and then [report bugs and issues on GitHub](http://github.com/desandro/isotope/issues).
Most layout modes (i.e masonry, fitRows) need to measure the size of each item to appropriately account for its space in the layout. Unloaded media files like images and @font-face fonts can throw off layout and cause item elements to overlap one another. Ideally, Isotope layouts should be initialized after all inner content has loaded.
The next best solution is to use the [imagesLoaded plugin](https://github.com/desandro/imagesloaded) included with Isotope. It's a small plugin that finds all the images in a context, and fires a callback function once all the images have loaded.
Another solution is to initialize Isotope inside `$(window).load()` instead of `$(document).ready()`. This will trigger Isotope after all the media on the page has loaded.
## Problems with CSS transforms {: #css-transforms}
As the browser implementations of CSS tranforms are still a work-in-progress, they can cause buggy behavoir with other types of dynamic content.
<div id="flash"></div>
+ [Flash content in Safari and Firefox](http://dropshado.ws/post/4085720152/css-transforms-breaking-flash), like YouTube or Vimeo videos, Flash ads, or Flash audio players.
### Disabling transforms
Set [`transformsEnabled`](options.html#transformsenabled) to `false`. This is an easy step to take when troubleshooting.
CSS transforms will break previous patterns for getting the position of an item. See the [`itemPositionDataEnabled`](options.html#itempositiondataenabled) option for a stop-gap.
[Similar to jQuery UI](http://docs.jquery.com/UI_Developer_Guide#Internal_functions_.26_scopes_explained), Isotope stores a instance containing properties, settings and methods with jQuery.data. You can access the instance with the `'isotope'` namespace.
{% highlight javascript %}
var $container = $('#container');
// initialize Isotope instance
$container.isotope({
// options...
});
// get Isotope instance
var isotopeInstance = $container.data('isotope');
isotopeInstance.options; // options
isotopeInstance.$filteredAtoms; // jQuery object of filtered & sorted item elements
isotopeInstance.masonry.columnWidth; // Layout mode specific properties
Currently, [using CSS transforms in Opera distorts text rendering](http://dropshado.ws/post/1260101028/opera-transform-issues). To avoid this issue, the default value of [`transformsEnabled`](options.html#transformsenabled) is set to <code><span class="kc"></span></code> for Opera.
I recommend against using Infinite Scroll with filtering or sorting. This combination produces a unnecessarily complex user interaction that will frustrate your users. New content gets added, but part of it might be hidden. There is no way for the user to tell what gets hidden or re-arranged when Infinite Scroll adds more content. Exercise [moderation](introduction.html#moderation) with your Isotope implementation.
If you do plan on implementing Infinite Scroll with filtering or sorting (which is a _bad idea_), use the `insert` method instead of `appended`.
Type rendering may appear poor in WebKit browsers like Chrome and Safari. This is because of Isotope's activation of hardware acceleration. A solution is to add add a matching background to the item elements. See more: [dropshado.ws - Resolving anti-aliasing on WebKit hardware-accelerated elements](http://dropshado.ws/post/6142339613/resolving-anti-aliasing-on-webkit-hardware-accelerated). Another solution is to [disable transforms](#disabling_transforms).
With [Masonry layout mode](layout-modes.html#masonry) If you run into an issue where you re-size the first item, and all the rest of the items no longer fit together in the grid, you most likely need to set [`columnWidth` option](layout-modes.html#masonry-options). Without `columnWidth` set, the Masonry layout mode will use the width of the first item for the size of its columns.
## Preventing clicks on filtered items {: #unclickable-filtered}
The [recommended CSS for filtering](filtering.html#recommended_css) includes `pointer-events: none` for `.isotope-hidden`. Unfortunately, Opera and Internet Explorer still let click events propagate with this style in place. But you can still dismiss click events in your click handler by checking to see if the element or element's parent is a filtered item.
