Tutorial Animations for Thumbnail Grids

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There are many parts of a website where we can apply nice transitions to make things more interesting. Images are certainly great entities for playing with fancy effects and today we'd like to show you some inspiration for thumbnail effects using CSS animations.

There are many possibilities when it comes to these kind of effects, but not all of them fit well when applied to multiple items, like a grid of images. There is not much space and we have to consider the stacking order of the items for the effects to look nice. An interesting thing is that we can play with delays, intensifying the viewing pleasure of the whole thing. Not only can we apply the delays in order, but randomly or reversed.

The beautiful illustrations used in the demos are by talented Isaac Montemayor.

Please note that we’ve created a dummy script for navigating through the images. Needless to say, this is not a script for managing images.
 
In the demos we use an unordered list with images wrapped in an anchor. Depending on the class of the list, we’ll apply a certain effect. The next set of images will be inserted into the list items which means that we’ll have two anchors in one list item.
An example for an effect is the following “scale and rotate”. The active class will trigger the animations and the first anchor will disappear with the “scaleRotateOut” keyframes. The tt-empty is used to indicate if an item was previously empty. So in that case we don’t want this anchor to disappear:

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/* Scale and rotate */ .tt-effect-scalerotate.tt-effect-active li:not(.tt-empty) a:first-child {     animation: scaleRotateOut 0.6s forwards; }

The second, new anchor will appear with another animation. In case the item was empty, we don’t have a second child, but only one. So we need to cover these cases, too:

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.tt-effect-scalerotate.tt-effect-active li a:nth-child(2), .tt-effect-scalerotate.tt-effect-active li.tt-empty a {     opacity: 0;     animation: scaleRotateIn 0.6s forwards; }

If there is a new anchor being added to an item, we just want to fade it out:

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.tt-effect-scalerotate.tt-effect-active li:not(.tt-empty) a:only-child {     animation: fadeOut 0.6s forwards; }

For the effect to look nice, we don’t want the bottom row items to overlap the upper row ones, so we’ll set the right z-index for the first and second row:

1 2	.tt-effect-scalerotate li:nth-child(-n+3) { z-index: 2; } /* order for correct overlapping */ .tt-effect-scalerotate li:nth-last-child(-n+3) { z-index: 1; }

And finally, we define the animations:

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@keyframes scaleRotateOut {     100% { opacity: 0; transform: scale(0); } } @keyframes scaleRotateIn {     0% { opacity: 0; transform: translateX(50%) translateY(100%) rotate(25deg); }     100% { visibility: visible; opacity: 1; transform: translateX(0%) translateY(0%) rotate(0deg); } } @keyframes fadeOut {     from { opacity: 1; }     to { opacity: 0; } }

The animations will of course only work in browsers that support them. IE10 does not play along very well with some of them due to a serious bug related to using percentages for transforms.
Source: http://tympanus.net/codrops/2013/10/23/animations-for-thumbnail-grids/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+tympanus+%28Codrops%29