How to remove css transition on exit?

HTML-CSS
#1

I have an accordion that i want to transition only when i open it, but i don’t want it to transition when it leaves. To visualize it, open and close the chat box where you are writing on freecodecamp.

    transition: max-height 0.6s ease;

I thought that ease will remove the exit transition, but it doesnt seem like so.

#2

My first thought is that you have a class with the transition in it.

opening { transition: max-height; etc }

Once the accordion is open, you toggle off that class. Then when you close it, it won’t transition.

#3

It might help if we can see the code. It can depend on where the transition is defined.

For example, this code will only have a transition on the hover (i.e. the .box growing):

<div class="box"></div>

.box {
  height: 80px;
  width: 250px;
  background: red;
}

.box:hover {
  height: 200px;
  transition: height .3s ease;
}

This will have it on both (i.e. the .box growing and shrinking):

.box {
  height: 80px;
  width: 250px;
  background: red;
  transition: height .3s ease;
}

.box:hover {
  height: 200px;
}
#4