div hover water ripple effect code example

Example 1: css3 ripple loop

.circle {
  height:100px;
  width:100px;
  border-radius:50%;
  background-color:red;
  
  position:relative;
  top:100px;
  left:300px;
  
  -webkit-transition:height .25s ease, width .25s ease;
  transition:height .25s ease, width .25s ease;
  
  -webkit-transform:translate(-50%,-50%);
  transform:translate(-50%,-50%);
}

.circle:hover{
  height:150px;
  width:150px;
}

.circle:before,
.circle:after {
  content:'';
  display:block;
  position:absolute;
  top:0; right:0; bottom:0; left:0;
  border-radius:50%;
  border:1px solid red;
}

.circle:before {
  -webkit-animation: ripple 2s linear infinite;
  animation: ripple 2s linear infinite;
}
.circle:after {
  -webkit-animation: ripple 2s linear 1s infinite;
  animation: ripple 2s linear 1s infinite;
}

.circle:hover:before,
.circle:hover:after {
  -webkit-animation: none;
  animation: none;
}

@-webkit-keyframes ripple{
  0% {-webkit-transform:scale(1); }
  75% {-webkit-transform:scale(1.75); opacity:1;}
  100% {-webkit-transform:scale(2); opacity:0;}
}

@keyframes ripple{
  0% {transform:scale(1); }
  75% {transform:scale(1.75); opacity:1;}
  100% {transform:scale(2); opacity:0;}
}

Example 2: css ripple effect

/* Answer to: "https://www.w3schools.com/howto/howto_css_hero_image.asp" */

/*
  The ripple effect is an awesome effect that Front End Website
  Developers use very often, in fact, so often that they have
  listed 10 great ripple effect designs by various different
  developers!

  Check out all the ripple effect designs here:
  https://freefrontend.com/css-ripple-effects/
*/