Answers for "how to make an image grow on hover"

how to make a button grow in css

.grow { transition: all .2s ease-in-out; }
.grow:hover { transform: scale(1.1); }

zoom image css

/*Zoom on hover*/

<style>
.zoom {
  padding: 50px;
  background-color: green;
  transition: transform .2s; /* Animation */
  width: 200px;
  height: 200px;
  margin: 0 auto;
}

.zoom:hover {
  transform: scale(1.5); /* (150% zoom)*/
}
</style>

<div class="zoom"></div>

/*credits: w3schools.com */