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// alert('Hello world!');

<div id="!important" class="!important">This is important!</div>

/**
 * Can `!important` be used as an ID or class? YES IT CAN! HTML5LOLZFTW!
 * 
 * Visit either:
 * - https://gist.github.com/Potherca/3a1bcdb58326128f0a13b1424f14a7f4
 * - http://dabblet.com/gist/3a1bcdb58326128f0a13b1424f14a7f4
 */

 div {
 	color: lime  !important;
 }
 
 #\!important {
 	color:blue !important;
 }
 .\!important {
 	color:red !important;
 }