“If you just sit and observe, you will see how restless your mind is. If you try to calm it, it only makes it worse, but over time it does calm, and when it does, there’s room to hear more subtle things. You see so much more than you could see before. It’s a discipline; you have to practice it.”
Steve Jobs

<easing-function>

The <easing-function> CSS data type denotes a mathematical function that describes the rate at which a numerical value changes.
<timing-function> css reference