From the code, it adds `animationstart` event that will be fired for any newly injected DOM https://github.com/muicss/sentineljs/blob/master/src/sentinel.js#L14

From the code, it adds `animationstart` event that will be fired for any newly injected DOM https://github.com/muicss/sentineljs/blob/master/src/sentinel.js#L14 https://github.com/muicss/sentineljs/blob/master/src/sentine... It adds a faux `animation` keyframe for the specified CSS selector.