Adds transitions of varying lengths and easing values to any element.

<p className="-transition-back-100">Transition on this div.</p>

Optional classes:

• -transition-back-100
• -transition-back-250
• -transition-back-500
• -transition-out-100
• -transition-out-250
• -transition-out-500
• -transition-in-100
• -transition-in-250
• -transition-in-500