CSS Selecting Issue

Question

1I'm just trying Hover Effect in CSS but I'm having a problem when I select an item in another container

Well, it's like this

when I checked w3schools and there is plenty of selectors, I found them not to match with I'm trying to do
so 65% I'm wrong with something in CSS or HTML hierarchy [image explain the situation]

Answer 1

Is this what you mean? https://jsfiddle.net/Montinyek/ybtLg2w9/1/

.color1:hover {
  color: red;
}