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POHow to create DRY CSS when using transform & keyframes
 

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    <p>I'm trying to achieve <a href="http://en.wikipedia.org/wiki/Don%27t_repeat_yourself" rel="nofollow">DRY</a> CSS code when using <code>transform</code> in combination with <code>keyframes</code>. Let's say I've got the following:</p> <p><strong>HTML</strong></p> <pre><code>&lt;div id="box"&gt;&lt;/div&gt; </code></pre> <p><strong>CSS</strong></p> <pre><code>#box { width:300px; height:300px; background-color:red; animation: animate 5s; animation-iteration-count: infinite; animation-direction: alternate; animation-timing-function: ease-in-out; } @keyframes animate { from { transform: scale(0.8) translateY(100px) rotate(10deg); } to { transform: scale(0.8) translateY(100px) rotate(-10deg); } } </code></pre> <p><a href="http://jsfiddle.net/gmn3L/" rel="nofollow">JSFiddle example</a>.</p> <p>How can I prevent doing the <code>scale(0.8)</code> and <code>translateY(100px)</code> inside the animation? I only want it to be rotated back and forth, without having to apply these properties inside transform for each step. Here, only two steps are used (<code>from</code> and <code>to</code>), but if multiple steps are used (for example with <code>0%</code>, <code>20%</code>, <code>40%</code>, <code>60%</code>, <code>80%</code>, <code>100%</code>) it would mean a lot of repeated code. As you can imagine, this isn't very good when changes will appear later.</p> <p>Ultimately, I'm looking for something like this (which isn't possible, since the <code>transform</code> property will get overridden):</p> <pre><code>#box { transform: scale(0.8) translateY(100px); } @keyframes animate { from { transform: rotate(10deg); } to { transform: rotate(-10deg); } } </code></pre> <p>Is this even possible?</p> <p>Ps. I'm not looking for an answer where you would change the <code>width</code>/<code>height</code> to <code>scale</code> and/or change the <code>margin</code>/<code>top</code> property to <code>translate</code>. Also nothing with LESS/SASS to make the values easy to change, since it would still result in duplicated code.</p>
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