I was a little too harsh on a colleague today.

He asked to help him get something working... After looking at it for a bit, I asked: "I don't get it, what have you been doing all day? Yesterday we split this element into two separate divs, and it worked perfectly, now I've see you've moved all the styles back to the container and there's only one div. The easiest way to get this to work properly is to simply undo everything you've done today."

He looked at me with puppy eyes and I realized I was too harsh. He wasn't _trying_ to break everything, he just hadn't understood why we split the element into two divs. So I lowered my tone a bit, and explained everything again, from the start, then did it again together with him and made sure he understood the separation.

But I still feel bad for how I talked to him. It's not like I shouted or cursed or anything (and I curse a _lot_ when talking about code). It was just condescending as fuck, and belittling. As if I was mocking him for not being as experienced as I am.

I'll do better next time.