CSS - Flash Effect


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Description

a sudden brief burst of bright light of an element

Syntax

@keyframes flash {
   0%, 50%, 100% {
      opacity: 1;
   }
   25%, 75% {
      opacity: 0;
   }
}

Parameters

  • Opacity − Opacity applies to an element to make translucence

Example

<html>
   <head>
   
      <style>
         
         .animated {
            background-image: url(/css/images/logo.png);
            background-repeat: no-repeat;
            background-position: left top;
            padding-top:95px;
            margin-bottom:60px;
            -webkit-animation-duration: 1s;
            animation-duration: 1s;
            -webkit-animation-fill-mode: both;
            animation-fill-mode: both;
         }
         
         @keyframes flash {
            0%, 50%, 100% {
               opacity: 1;
            }
            25%, 75% {
               opacity: 0;
            }
         }
         
         .flash {
            animation-name: flash;
         }
      </style>
      
   </head>
   <body>
   
      <div id="animated-example" class="animated flash"></div>
      <button onclick="myFunction()">Reload page</button>
      
      <script>
         function myFunction() {
            location.reload();
         }
      </script>
      
   </body>
</html>

It will produce the following result −


css_animation.htm

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