JSFiddle - React, Tailwind, and code Playground

HTML

<div class='container'>
  <div class='good-border'>
    Hover here ...
    <br/>
    Good border!
  </div>
  <br/>
  <div class='bad-border'>
    Hover here ...
    Bad border!
  </div>
</div>

CSS

.good-border {
  padding: 1px;
}

.good-border:hover {
  padding: 0px;
  border: 1px solid blue;
}

.bad-border:hover {
  border: 1px solid blue;
}

.container {
  border: 1px solid red;
  width: 200px;
  height: 150px;
}

.bad-border, .good-border {
  background-color: red;
  color: white;
  width: 100px;
  height: 50px;
  cursor: pointer;
}