how make fade in css code example

Example 1: css fade in

/* Just add .fade-in class to element */

.fade-in {
	animation: fadeIn 2s;
  	opacity: 1;
}

@keyframes fadeIn {
  from {
  	opacity: 0;
  }
  to {
 	opacity: 1;
  }
}

Example 2: fade in css

<style>
.fade-css-example {
  animation: fade-animation-example ease 10s;
}

@keyframes fade-animation-example {
  0% {
    opacity:0;
  }
  100% {
    opacity:1;
  }
}
</style>
<div class="fade-css-example">
   <img src="image (1).jpg">
</div>