how to display text on hover code example

Example 1: css change text on hover

Check this:
https://codepen.io/DevLorenzo/pen/vYXbJvd

Example 2: css change text on hover

<button><span>3 replies</span></button>

Example 3: css change text on hover

button {width:6em}
button:hover span {display:none}
button:hover:before {content:"Reply!"}