button smooth transition css code example

Example 1: smooth button effect css

.CLASS{
  	width: 100px; /* Change Width With Smooth Effect */
  	height: 100px; /* Change Height With Smooth Effect */
	transition: 1s; /* Change "1" With Display Time (Seconds)*/
}

Example 2: css hover animation

a:hover {
  color: #252525;
}